1 - ______ is obviously useful to a plant as the excitaion by an insect of one or more sensory hairs of the venus's flytrap (Dionea muscipula):
1 - ______ is obviously useful to a plant as the excitaion by an insect of one or more sensory hairs of the venus's flytrap (Dionea muscipula):
Chemical potential
2 - A bulk of nitrogen in nature is fixed by:
2 - A bulk of nitrogen in nature is fixed by:
Symbiotic bacteria
3 - A characteristic feature of ripening of some fruits (like banana) is a sudden increase in respiration, which is known as:
3 - A characteristic feature of ripening of some fruits (like banana) is a sudden increase in respiration, which is known as:
Climacteric
4 - A final component of thylakoid necessary for photophos-phorylation is a complex protein called:
4 - A final component of thylakoid necessary for photophos-phorylation is a complex protein called:
ATPase/coupling factor
5 - A free-living anaerobic bacterium capable of N2 fixation in soil is:
5 - A free-living anaerobic bacterium capable of N2 fixation in soil is:
Clostridium
6 - A maize plant to produce one kg of grain (dry) transpires _____ kg of water:
6 - A maize plant to produce one kg of grain (dry) transpires _____ kg of water:
600
7 - A micro-essential element is one which:
7 - A micro-essential element is one which:
Is needed in very small amounts but is as important as a major essential element
8 - A natural growth regulator (hormone) is:
8 - A natural growth regulator (hormone) is:
Ethylene
9 - A plant is kept in 30 ppm. of CO2 concentration what will happen to it?
9 - A plant is kept in 30 ppm. of CO2 concentration what will happen to it?
Plant will die soon
10 - A plant, which needs not less than 10 hours of light to flower, is:
10 - A plant, which needs not less than 10 hours of light to flower, is:
Short day plant
11 - A thoroughly cleaned goat bladder if filled with syrup, tightly tied immersed in a vessel of water:
11 - A thoroughly cleaned goat bladder if filled with syrup, tightly tied immersed in a vessel of water:
The volume of liquid within the bladder will increase
12 - A trace element essential for plant grwoth and radio-isotope which is used in cancer therapy is known is:
12 - A trace element essential for plant grwoth and radio-isotope which is used in cancer therapy is known is:
Cobalt
13 - A trace element is:
13 - A trace element is:
Required in very minute amounts
14 - ABA (abscic acid) appears to be universal among:
14 - ABA (abscic acid) appears to be universal among:
Vascular plants
15 - ABA has the following effects depending upon the tissue involved:
15 - ABA has the following effects depending upon the tissue involved:
Inhibition of protein synthesis (translocation)
16 - According to the fluid mosaic model the correct sequence of plasmalemma is:
16 - According to the fluid mosaic model the correct sequence of plasmalemma is:
P,-L,-L,P
17 - According to the mosaic model (proposed by Singer and Nicholoson) plasma membrance is composed of:
17 - According to the mosaic model (proposed by Singer and Nicholoson) plasma membrance is composed of:
Phospholipids, extrinsic proteins, intrinsic proteins
18 - Aerobic respiration is more advantageous to a large organism than anaerobic respiration because aerobic respiration:
18 - Aerobic respiration is more advantageous to a large organism than anaerobic respiration because aerobic respiration:
Releases more energy from an equal amount of nutrients
19 - Alcohol is produced during the process of:
19 - Alcohol is produced during the process of:
Anaerobic respiration
20 - Algae float in water during daytime and sink during nighttime because:
20 - Algae float in water during daytime and sink during nighttime because:
They become buoyant in light due to accumulation of oxygen bubbles released in photosynthesis
21 - All the membrane bounded cell organelles except:
21 - All the membrane bounded cell organelles except:
Ribosomes
22 - An apparatus for measuring transpiration in plants is called:
22 - An apparatus for measuring transpiration in plants is called:
Potometer
23 - Anaerobic respiration is also known as:
23 - Anaerobic respiration is also known as:
Intra-molecular respirtion
24 - Anaerobic respiration was first of all reported by:
24 - Anaerobic respiration was first of all reported by:
Kostychev
25 - At equilibrium, the vapour density or pressure about pure water in a closed container is:
25 - At equilibrium, the vapour density or pressure about pure water in a closed container is:
1
26 - Atmospheric nitrogen in the soil is fixed by:
26 - Atmospheric nitrogen in the soil is fixed by:
Pulses
27 - Auxim promote growth:
27 - Auxim promote growth:
Mostly
28 - Bacteria that change proteins to ammonia in nitrogen cycle are:
28 - Bacteria that change proteins to ammonia in nitrogen cycle are:
Decay bacteria (ammonifying bacteria)
29 - Bacterioids are:
29 - Bacterioids are:
Enlarged non-mobile cellular bacteria-Rhizobium legumino-sarum in root nodules of legumes
30 - Basic structure of all chlorophylls comprises:
30 - Basic structure of all chlorophylls comprises:
Poryhyrin system
31 - Before opening of stomata, accumulation of one of the ion is guard cell:
31 - Before opening of stomata, accumulation of one of the ion is guard cell:
K
32 - Blue green algae are:
32 - Blue green algae are:
Prokaryotes
33 - Both respiration and photosynthesis require:
33 - Both respiration and photosynthesis require:
Cytochromes
34 - Brassins, recently discovered steroid growth promoters were first isolated from pollen grains of rape plants, but now known to be present in ______ also:
34 - Brassins, recently discovered steroid growth promoters were first isolated from pollen grains of rape plants, but now known to be present in ______ also:
In all of these
35 - Breeder seed is _____ % pure:
35 - Breeder seed is _____ % pure:
100
36 - Breeder seed production units of ICAR producing ______ tonnes of breeder seed:
36 - Breeder seed production units of ICAR producing ______ tonnes of breeder seed:
3700
37 - By hormone application it is possible to obtain seedless fruits. In which of the following it is desirable to obtain seedless fruits?
37 - By hormone application it is possible to obtain seedless fruits. In which of the following it is desirable to obtain seedless fruits?
Pomegranate
38 - Carbohydrates are present in the plasmalemma in the form of:
38 - Carbohydrates are present in the plasmalemma in the form of:
Phospholipids (glycolipids) and phosphoproteins (glycoproteins)
39 - Carbon becomes available to crop plants in the form of:
39 - Carbon becomes available to crop plants in the form of:
Carbon dioxide
40 - Carbon dioxide is liberated during:
40 - Carbon dioxide is liberated during:
Respiration
41 - Cell membrane consist of:
41 - Cell membrane consist of:
Both Phospholipids and proteins
42 - Cell organelle found only in plants is:
42 - Cell organelle found only in plants is:
Plastids
43 - Cellulosic cell wall can be specifically stained by:
43 - Cellulosic cell wall can be specifically stained by:
Zinc chloride
44 - Chemical phase in photosynthesis was discovered for the first time by:
44 - Chemical phase in photosynthesis was discovered for the first time by:
Blackman
45 - Chlorophyll 'b' is present in:
45 - Chlorophyll 'b' is present in:
Eukaryotes
46 - Chlorophyll contains:
46 - Chlorophyll contains:
Mg
47 - Chlorophyll is present:
47 - Chlorophyll is present:
In the grana of chloroplasts
48 - Chloroplast contains maximum quantity of:
48 - Chloroplast contains maximum quantity of:
RUDP carboxylase
49 - Chloroplasts fix:
49 - Chloroplasts fix:
CO2
50 - Chlorosis occur in plants growth in:
50 - Chlorosis occur in plants growth in:
Iron free medium
51 - CO2 is necessary for photosynthesis; the chemical used to remove this gas most effectively from entering a control apparatus is:
51 - CO2 is necessary for photosynthesis; the chemical used to remove this gas most effectively from entering a control apparatus is:
Potassium hydroxide solution
52 - Commonest free ion in the cell is of:
52 - Commonest free ion in the cell is of:
Potassium
53 - Contamination permitted in maize is:
53 - Contamination permitted in maize is:
0.01
54 - Cylokinins have the ability to:
54 - Cylokinins have the ability to:
Cause morphogenesis
55 - Cytochrome oxidase contains:
55 - Cytochrome oxidase contains:
Fe
56 - Cytoklnins were first discovered in 1913 by Gottlieb Haberlandt in:
56 - Cytoklnins were first discovered in 1913 by Gottlieb Haberlandt in:
Austria
57 - Cytology, and genetics were merged into ""Cytogenetics"by one of the following:
57 - Cytology, and genetics were merged into ""Cytogenetics"by one of the following:
T.H.Morgan
58 - D.P.D. stands for:
58 - D.P.D. stands for:
Diffusion pressure deficit
59 - Deficiency of iron causes:
59 - Deficiency of iron causes:
Interveinal chlorosis first on young leaves
60 - Deficiency of Mo causes:
60 - Deficiency of Mo causes:
Mottling and necrosis of leaves
61 - Die-back' of citrus is caused due to the deficiency of:
61 - Die-back' of citrus is caused due to the deficiency of:
Copper
62 - Double membrane is absent in:
62 - Double membrane is absent in:
Lysosomes
63 - DPD is equal to:
63 - DPD is equal to:
OP - TP
64 - During 24 hours there is a time when plants neither give O2 nor CO2. This is the time of:
64 - During 24 hours there is a time when plants neither give O2 nor CO2. This is the time of:
Twilight
65 - During aerobic respiration oxidation of glucose results in the formation of:
65 - During aerobic respiration oxidation of glucose results in the formation of:
CO2 and water
66 - During the photosynthesis the oxygen in glucose comes from:
66 - During the photosynthesis the oxygen in glucose comes from:
Carbon dioxide
67 - Enzymes are basically:
67 - Enzymes are basically:
Protein
68 - Enzymes, vitamins and hormones can be classified into a single category of biological chemicals because all of them:
68 - Enzymes, vitamins and hormones can be classified into a single category of biological chemicals because all of them:
Aid in regulating metabolism
69 - Etherel (trade name) of ethephone (common name) is used in various aspects of:
69 - Etherel (trade name) of ethephone (common name) is used in various aspects of:
Horticulture
70 - Ethylene especially in tomato plants has the following effects:
70 - Ethylene especially in tomato plants has the following effects:
Causes leaf senescence
71 - Ethylene is a:
71 - Ethylene is a:
Gaseous hormone
72 - Etiolated plants are formed due to lack of:
72 - Etiolated plants are formed due to lack of:
Light
73 - Every living cell has a:
73 - Every living cell has a:
Membrane
74 - Except which one, all other processes help in adding nitrogen to soil:
74 - Except which one, all other processes help in adding nitrogen to soil:
Addition of lime in soil
75 - Excessive use of fertilizer causes death of plants due to:
75 - Excessive use of fertilizer causes death of plants due to:
Exosmosis
76 - Exogenous application of Gibberellins induces male flowers formation on genetically female plants in:
76 - Exogenous application of Gibberellins induces male flowers formation on genetically female plants in:
Cucumis
77 - Fermentation is conducted by:
77 - Fermentation is conducted by:
Some fungi and some bacteria
78 - Fermentation is:
78 - Fermentation is:
Incomplete oxidation of carbohydrate
79 - Fertilizers have formula consisting of three figures such as 8-10-10. These figures stand for percentage of:
79 - Fertilizers have formula consisting of three figures such as 8-10-10. These figures stand for percentage of:
Nitrogen, phosphorous, Potassium
80 - Foliar application of colloidal suspensions of triacontanol (30-carbon saturated primary alcohol isolated first from alfalfa shoots) enhanced the growth of seedlings of ______ and also maize.
80 - Foliar application of colloidal suspensions of triacontanol (30-carbon saturated primary alcohol isolated first from alfalfa shoots) enhanced the growth of seedlings of ______ and also maize.
Rice
81 - For photosynthesis (i.e. for the synthesis of organic matter) the green plants need only:
81 - For photosynthesis (i.e. for the synthesis of organic matter) the green plants need only:
All of these
82 - For the purpose of photosynthesis all except one of the following items are essential, point out the exception:
82 - For the purpose of photosynthesis all except one of the following items are essential, point out the exception:
Oxygen, sucrose
83 - Functions and vital activities of the plants are studied under:
83 - Functions and vital activities of the plants are studied under:
Physiology
84 - Gibberellic acid has been successfully employed to induce flowering:
84 - Gibberellic acid has been successfully employed to induce flowering:
In long day points under short day conditions
85 - Gibberellins are now commercially used ______ into increase sugarcane growth and sugar yields:
85 - Gibberellins are now commercially used ______ into increase sugarcane growth and sugar yields:
Hawaii
86 - Gibberellins differ from auxins since they produce:
86 - Gibberellins differ from auxins since they produce:
Stem elongation
87 - Gibberellins were first discovered in ______ in studies with diseased rice plants that grew excessively tall:
87 - Gibberellins were first discovered in ______ in studies with diseased rice plants that grew excessively tall:
Japan
88 - Growth is primarily affected by two climatic factors, which are:
88 - Growth is primarily affected by two climatic factors, which are:
Light and temperature
89 - Guard cells are found in:
89 - Guard cells are found in:
Stomata
90 - H+ tons in thylaoid channels arise from oxidation of H2O and PQH2 cause H+ ions concentration in channels becomes; about ______ times as great as in the stroma when photosynthesis occurs:
90 - H+ tons in thylaoid channels arise from oxidation of H2O and PQH2 cause H+ ions concentration in channels becomes; about ______ times as great as in the stroma when photosynthesis occurs:
1000
91 - High concentration of synthetic auxins would:
91 - High concentration of synthetic auxins would:
Kills weeds
92 - High energy compounds:
92 - High energy compounds:
Are compounds, which link, exergonic to endergonic process
93 - How do most of the plants obtain air?
93 - How do most of the plants obtain air?
Through opening in the leaves
94 - Hydroponics is:
94 - Hydroponics is:
Growing of plants in water culture
95 - If a cell is placed in a solution and the cell shrinks, the solution is:
95 - If a cell is placed in a solution and the cell shrinks, the solution is:
Hypertonic
96 - If a plant cell is immersed in water, the water continues to enter the cell until the:
96 - If a plant cell is immersed in water, the water continues to enter the cell until the:
Diffusion pressure is the same inside the cell as outside
97 - If cell A with OP = 5 and TP - 4 is surrounded by the cells with OP = 3 and TP = 1 what will be direction of water movement?
97 - If cell A with OP = 5 and TP - 4 is surrounded by the cells with OP = 3 and TP = 1 what will be direction of water movement?
From cell A to other cells
98 - If cells are broken up and sedimented by centrifugation the new structure formed in one of the fractions is:
98 - If cells are broken up and sedimented by centrifugation the new structure formed in one of the fractions is:
Mecrosome
99 - If CO2 content of the atmosphere is as high as 300 part per million:
99 - If CO2 content of the atmosphere is as high as 300 part per million:
The plants would thrive well
100 - If CO2 is given off in respirtion, why does the amount of CO2 in the atmosphere remain relatively constant?
100 - If CO2 is given off in respirtion, why does the amount of CO2 in the atmosphere remain relatively constant?
CO2 is converted in photosynthesis to carbohydrates
101 - If fermentation is allowed to proceed in a closed vessel:
101 - If fermentation is allowed to proceed in a closed vessel:
Gas pressure will develop because of excess of carbon dioxide
102 - If naked pea seeds were kept in four respiratory flasks, they would germinate best if flask contains:
102 - If naked pea seeds were kept in four respiratory flasks, they would germinate best if flask contains:
Oxygen
103 - If we separate the cell organelles of a living cell which part should be alive?
103 - If we separate the cell organelles of a living cell which part should be alive?
Chloroplast
104 - If you place a piece of tomato in concentrated solution:
104 - If you place a piece of tomato in concentrated solution:
It would become limp due to loss of water from its cells
105 - In 1948, V.S. Chardakov who devised a simple and efficient method to determine the test solution in which no change in concentration occurs was:
105 - In 1948, V.S. Chardakov who devised a simple and efficient method to determine the test solution in which no change in concentration occurs was:
Russian Scientist
106 - In a fully turgid cell the values (arbitrary values are shown) of DPD. OP and TP will show the tendency:
106 - In a fully turgid cell the values (arbitrary values are shown) of DPD. OP and TP will show the tendency:
DPD 00 atm; OP 15;TP 05 atm
107 - In an E. coli cell according to operon theory an operator gene combines with:
107 - In an E. coli cell according to operon theory an operator gene combines with:
Regulator protein to ""switch off"structural gene transcription
108 - In an experiment a plant is dried, placed in a crucible and strongly heated air for a long time. The residue is composed of:
108 - In an experiment a plant is dried, placed in a crucible and strongly heated air for a long time. The residue is composed of:
The oxides or carbonates of about ten element
109 - In anaerobic respiration in plants:
109 - In anaerobic respiration in plants:
Carbon dioxide is given out
110 - In anaerobic respiration the end product is:
110 - In anaerobic respiration the end product is:
Ethyl alcohol
111 - In both transpirtions and evaporation water is lost in the form of vapour yet they differ because:
111 - In both transpirtions and evaporation water is lost in the form of vapour yet they differ because:
Transpiration is a physiological process and evaporation is physical process
112 - In fermentation:
112 - In fermentation:
Energy is liberated
113 - In flowering plants a second seed coat is known as:
113 - In flowering plants a second seed coat is known as:
Tegamen
114 - In land plants the gaseous exchange takes place through the open stomata, in submerged hydrophytes it takes place/through:
114 - In land plants the gaseous exchange takes place through the open stomata, in submerged hydrophytes it takes place/through:
By general surface of the cells by diffusion
115 - In many plants the changes over from vegetative to reproductive phase take place in response to:
115 - In many plants the changes over from vegetative to reproductive phase take place in response to:
The length of the day
116 - In nature, the main organisms, which take part in nitrogen cycle, are:
116 - In nature, the main organisms, which take part in nitrogen cycle, are:
Bacteria plants
117 - In nitrogen cycle which of the following plays an important role?
117 - In nitrogen cycle which of the following plays an important role?
Nitrobacter
118 - In submerged leaves respiration takes place through:
118 - In submerged leaves respiration takes place through:
General surface of the leaf
119 - In terms of permeability the cell wall and plasmalemma are:
119 - In terms of permeability the cell wall and plasmalemma are:
Permeable and differentially permeable
120 - In the mechanism of opening of stomata the important factor is the:
120 - In the mechanism of opening of stomata the important factor is the:
Chlorophyll content of the cells
121 - In the nodules of roots in leguminous plants we find:
121 - In the nodules of roots in leguminous plants we find:
N2 fixing bacteria
122 - In the process of respiration in plants 180 gms. of sugar plus 192 gms. of oxygen produce:
122 - In the process of respiration in plants 180 gms. of sugar plus 192 gms. of oxygen produce:
264 gms. of CO2, 108 gms. of water and 674 kilo cals. of energy
123 - In unisexual plants sex can be changed by application of:
123 - In unisexual plants sex can be changed by application of:
Auxins
124 - In water molecule, line-segments connecting the centres of the two hydrogen atoms with the centre of oxygen atoms form an angle of about:
124 - In water molecule, line-segments connecting the centres of the two hydrogen atoms with the centre of oxygen atoms form an angle of about:
105
125 - In which of the following plants would metabolism be hindered if the leaves were coated with wax on their upper surface?
125 - In which of the following plants would metabolism be hindered if the leaves were coated with wax on their upper surface?
Lotus
126 - Increase in temperature and velocity of wind cause an increase in transpiration initially but later it slows down because:
126 - Increase in temperature and velocity of wind cause an increase in transpiration initially but later it slows down because:
Of closure of stomata
127 - Instantaneous source of energy is:
127 - Instantaneous source of energy is:
Glucose
128 - It hypothetical chemical involved in the flowering of plant is:
128 - It hypothetical chemical involved in the flowering of plant is:
Florigen
129 - It is advantageous to the Hydrilla to demonstrate photosynthesis than land plant because:
129 - It is advantageous to the Hydrilla to demonstrate photosynthesis than land plant because:
Oxygen bubbles can be collected over water
130 - Leaves with yellow or colourless patches are termed as:
130 - Leaves with yellow or colourless patches are termed as:
Variegated
131 - Light harvesting complexes surrounded by both photosystems (I and II) and _____ light energy to them.
131 - Light harvesting complexes surrounded by both photosystems (I and II) and _____ light energy to them.
Transfer
132 - Members of bean family are of particular importance in crop rotation programmes primarily because:
132 - Members of bean family are of particular importance in crop rotation programmes primarily because:
They have nitrogen-fixing bacteria associated in their roots
133 - Mg for Fe are needed by plants for:
133 - Mg for Fe are needed by plants for:
Synthesis of chlorophyll
134 - Mineral salts, which are absorbed by the roots for the soil, are in the form of:
134 - Mineral salts, which are absorbed by the roots for the soil, are in the form of:
Concentrated solution
135 - Minerals absorbed by roots move to the leaf through:
135 - Minerals absorbed by roots move to the leaf through:
Xylem
136 - More energy is released by the process of aerobic respiration than by fermentation because fermentation:
136 - More energy is released by the process of aerobic respiration than by fermentation because fermentation:
Causes incomplete oxidation of organic food
137 - Most of the ______ flowers contain carotenoid especially xanthophyll type and it is believed that they benefit certain plants by attracting pollinating insects:
137 - Most of the ______ flowers contain carotenoid especially xanthophyll type and it is believed that they benefit certain plants by attracting pollinating insects:
Yellow
138 - Most plants obtain their nitrogen from the soil in the form of:
138 - Most plants obtain their nitrogen from the soil in the form of:
Nitrate
139 - Nitrogen is essential component of:
139 - Nitrogen is essential component of:
Protein
140 - Non-essential element for the proper growth of plant is:
140 - Non-essential element for the proper growth of plant is:
Cobalt
141 - Non-living substances of the protoplasm are collectively known as:
141 - Non-living substances of the protoplasm are collectively known as:
Deutoplasm
142 - On the basis of symptoms of chlorosis in leaves a student inferred that this was due to deficiency of nitorgen. This inference could be correct only if we assume that yellowing of leaves appeared first in:
142 - On the basis of symptoms of chlorosis in leaves a student inferred that this was due to deficiency of nitorgen. This inference could be correct only if we assume that yellowing of leaves appeared first in:
Old leaves
143 - One of the alkaloids listed below is found in cocoa beans:
143 - One of the alkaloids listed below is found in cocoa beans:
Theobromina
144 - One of the following causes rootings in cuttings:
144 - One of the following causes rootings in cuttings:
IBA
145 - One of the following is a precursor of auxin:
145 - One of the following is a precursor of auxin:
Tryptophan
146 - One of the following is a water-soluble pigment:
146 - One of the following is a water-soluble pigment:
Anthocyanin
147 - One of the following is needed in the reduction of nitrate to nitrite:
147 - One of the following is needed in the reduction of nitrate to nitrite:
Mo
148 - One of the following is not found in intact cells:
148 - One of the following is not found in intact cells:
Microsomes
149 - One of the following is present outside the plasma membrane but inside the cell wall:
149 - One of the following is present outside the plasma membrane but inside the cell wall:
Lomasome
150 - One of the following is sulphur containing amino add:
150 - One of the following is sulphur containing amino add:
Methionine
151 - One the following micronutrient for plants:
151 - One the following micronutrient for plants:
Manganese
152 - Organisms, which fix atmospheric nitrogen in the soil, are found among:
152 - Organisms, which fix atmospheric nitrogen in the soil, are found among:
Bacteria
153 - Osmosis means:
153 - Osmosis means:
Flow of solvent from low concentration to high concentration
154 - Out of the following, which one is the most common type of transpiration?
154 - Out of the following, which one is the most common type of transpiration?
Stomatal
155 - Oxygen evolved in photosynthesis is:
155 - Oxygen evolved in photosynthesis is:
Equal to CO2 consumed
156 - Peptide linkages are formed among:
156 - Peptide linkages are formed among:
Amino acid
157 - Photochemical reactions of photosynthesis take place in:
157 - Photochemical reactions of photosynthesis take place in:
Thylakoids
158 - Photosynthesis is a:
158 - Photosynthesis is a:
Reductive, endergonic, anabolic process
159 - Photosynthesis is:
159 - Photosynthesis is:
Anabolic process
160 - Phytochrome is found in:
160 - Phytochrome is found in:
Angiosperms
161 - Phytochrome is used in:
161 - Phytochrome is used in:
All physiological processes exhibited by the plants such as seed germination, flowering stem elongation and transpiration
162 - Pigment system is concerned with:
162 - Pigment system is concerned with:
Photolysis of water
163 - Pineapple can be made to flower in off-season by:
163 - Pineapple can be made to flower in off-season by:
Ethylene
164 - Plant cells do not burst in distilled water because:
164 - Plant cells do not burst in distilled water because:
Cell wall is elastic, rigid and get stretched
165 - Plants absorb nitrogen in the form of:
165 - Plants absorb nitrogen in the form of:
Nitrate
166 - Plants hormone, which is translocated to other parts for growth of the plant as:
166 - Plants hormone, which is translocated to other parts for growth of the plant as:
Indole acetic acid
167 - Plants synthesis protein from:
167 - Plants synthesis protein from:
Amino acids
168 - Plasma membrane is:
168 - Plasma membrane is:
A selective barrier
169 - Plasmagel is the name of:
169 - Plasmagel is the name of:
Ectoplasm
170 - Plasmolysis will occur when the cell is placed in a:
170 - Plasmolysis will occur when the cell is placed in a:
Hypertonic solution
171 - Position and frequency of stomata can be determined by:
171 - Position and frequency of stomata can be determined by:
Cobalt chloride paper method
172 - Potometer is used to measure:
172 - Potometer is used to measure:
Rate of respiration
173 - Probably the most useful measurable property in the soil-plnt-air system is:
173 - Probably the most useful measurable property in the soil-plnt-air system is:
Water potential
174 - Process of endosmosis stop:
174 - Process of endosmosis stop:
When solution become isotonic
175 - Process of transpiration in plants helps in:
175 - Process of transpiration in plants helps in:
Upward conduction
176 - Prokaryota means:
176 - Prokaryota means:
A cell with diffused nucleus
177 - Proteins are made up of:
177 - Proteins are made up of:
Amino acid
178 - Proteins are synthesized on:
178 - Proteins are synthesized on:
Ribosomes
179 - Protoplasm is:
179 - Protoplasm is:
Polyphasic colloidal system
180 - Pure Live Seed (PLS) is related to:
180 - Pure Live Seed (PLS) is related to:
Germination percentage
181 - Respiration is:
181 - Respiration is:
Exothermic process
182 - Ripening of banana is accompanied with:
182 - Ripening of banana is accompanied with:
Sudden rise in ethylene
183 - Root pressure is maximum when:
183 - Root pressure is maximum when:
Transpirtion is very low and absorption is high
184 - Rotation of crops is practised in plants because:
184 - Rotation of crops is practised in plants because:
It increases the nitrogen content of the soil
185 - Seeds swell when placed in water due to:
185 - Seeds swell when placed in water due to:
Imbibitions
186 - Seeds when soaked in water imbibe it because of:
186 - Seeds when soaked in water imbibe it because of:
The process of absorption works
187 - Semi-permeability is the property of:
187 - Semi-permeability is the property of:
Plasma membrane
188 - Sialic acid is a constituent of:
188 - Sialic acid is a constituent of:
Cell membrane
189 - Simplest amino acid is:
189 - Simplest amino acid is:
Glycine
190 - Standards of germination for seed certification in chillies:
190 - Standards of germination for seed certification in chillies:
0.6
191 - Stomata are bound by a pair of guard cells and open guard cells are:
191 - Stomata are bound by a pair of guard cells and open guard cells are:
Turgid
192 - Stomata open because of:
192 - Stomata open because of:
Increased turgidity of the guard cells brought about by exposure to light
193 - Supra-optimal concentration of auxins:
193 - Supra-optimal concentration of auxins:
Kills the plants
194 - Swilling of wooden door during rainy season is due to:
194 - Swilling of wooden door during rainy season is due to:
Imbibitions
195 - Symbiotic nitorgen fixing bacteria occur in the genus:
195 - Symbiotic nitorgen fixing bacteria occur in the genus:
Xanthomonas
196 - The action of ethylene is effectively inhibited by ______ ion.
196 - The action of ethylene is effectively inhibited by ______ ion.
Silver
197 - The acutal pressure with which water enters into the cell is called:
197 - The acutal pressure with which water enters into the cell is called:
D.P.D
198 - The apparatus generally used for studying the rate of transpiration stream is:
198 - The apparatus generally used for studying the rate of transpiration stream is:
Potometer
199 - The atmosphere has less carbon than other reservoirs but, it still contains about 700 billion tones and roughly percent is annually used in photosynthesis:
199 - The atmosphere has less carbon than other reservoirs but, it still contains about 700 billion tones and roughly percent is annually used in photosynthesis:
10
200 - The attraction of like molecules for each other (because of hydrogen bonds) is called:
200 - The attraction of like molecules for each other (because of hydrogen bonds) is called:
None of these
201 - The condition under which transpiration would be lowest
201 - The condition under which transpiration would be lowest
When there is high humidity in the atmosphere
202 - The conditions under which transpiration would be most rapid is:
202 - The conditions under which transpiration would be most rapid is:
Low humidity, high temperature guard cells are turgid and moist soil
203 - The dry weight of a green leaf will be:
203 - The dry weight of a green leaf will be:
Greater in the afternoon
204 - The efforts to enhance partition of assimilates to storage organs of interest to farmers have quite successful due to:
204 - The efforts to enhance partition of assimilates to storage organs of interest to farmers have quite successful due to:
Better breeding techniques
205 - The element, which is required in largest quantities by plant of water?
205 - The element, which is required in largest quantities by plant of water?
Nitrogen
206 - The end product of fermentation is:
206 - The end product of fermentation is:
C2H5OH and CO2
207 - The end products of respiration in plants are:
207 - The end products of respiration in plants are:
CO2, H2O and energy
208 - The figures of cork cells as seen by Robert Hooke were published in this book:
208 - The figures of cork cells as seen by Robert Hooke were published in this book:
Micrographia
209 - The first event in photosynthesis is:
209 - The first event in photosynthesis is:
Photolysis
210 - The first symbolic Importance of seed started after the report of Famine Commission in:
210 - The first symbolic Importance of seed started after the report of Famine Commission in:
1881
211 - The first visible product of photosynthesis is:
211 - The first visible product of photosynthesis is:
Starch
212 - The following is a naturally occurring growth inhibitor:
212 - The following is a naturally occurring growth inhibitor:
ABA
213 - The following percentage of water absorbed by herbaceous plants is lost in transpiration:
213 - The following percentage of water absorbed by herbaceous plants is lost in transpiration:
99
214 - The framework elements of plants are:
214 - The framework elements of plants are:
Copper, Carbon and Oxygen
215 - The incomplete breakdown of sugar in anaerobic respiration result in the formation of:
215 - The incomplete breakdown of sugar in anaerobic respiration result in the formation of:
Alcohol and carbon dioxide
216 - The isolation of individual organelle from cell homogenates is achieved through:
216 - The isolation of individual organelle from cell homogenates is achieved through:
Chromatography
217 - The loss of water in the form of vapour from aerial plant parts is known as:
217 - The loss of water in the form of vapour from aerial plant parts is known as:
Transpiration
218 - The most effective wavelength of visible light in photosynthesis is in the region of which of the following?
218 - The most effective wavelength of visible light in photosynthesis is in the region of which of the following?
Red
219 - The normal form of a plant is maintained by the presence of:
219 - The normal form of a plant is maintained by the presence of:
Water
220 - The nucleoplasm and the cytoplasm are continuous with one another through the nuclear pores in:
220 - The nucleoplasm and the cytoplasm are continuous with one another through the nuclear pores in:
Eukaryotic cells
221 - The optically hyaline portion of the protoplasm is called as:
221 - The optically hyaline portion of the protoplasm is called as:
Hyaloplasm
222 - The oxygen produced during photosynthesis comes from water was proved by:
222 - The oxygen produced during photosynthesis comes from water was proved by:
Ruben
223 - The pH gradient across the cell membrane provides a powerful form of _____ potential energy largely responsible for driving phosphorylation:
223 - The pH gradient across the cell membrane provides a powerful form of _____ potential energy largely responsible for driving phosphorylation:
Chermical
224 - The process by which proteins are synthesized in a cell is called:
224 - The process by which proteins are synthesized in a cell is called:
Translation
225 - The process of photophos-phorylation was discovered by:
225 - The process of photophos-phorylation was discovered by:
Arnon
226 - The production of nitrates from Ammonia through Nitrosomonas is called:
226 - The production of nitrates from Ammonia through Nitrosomonas is called:
Nitrification
227 - The prokaryota are a group of organisms:
227 - The prokaryota are a group of organisms:
In which nuclear membrance, nucleolus and chromosomal matrix are lacking
228 - The protoplasm theory was established in plant cell by:
228 - The protoplasm theory was established in plant cell by:
De Bary
229 - The provision of light of shorter wavelength at the same time, as longer red wavelength photosynthesis.
229 - The provision of light of shorter wavelength at the same time, as longer red wavelength photosynthesis.
Enhances
230 - The rate of transpiration will greatly depend upon:
230 - The rate of transpiration will greatly depend upon:
Position of stomata
231 - The real force causing entry of water into a cell from other cell is:
231 - The real force causing entry of water into a cell from other cell is:
Diffusion pressure deficit
232 - The removal of apical buds and young leaves _____ branching:
232 - The removal of apical buds and young leaves _____ branching:
Increases
233 - The researches on photosynthesis started:
233 - The researches on photosynthesis started:
In the 18th century
234 - The role of molybdenum is:
234 - The role of molybdenum is:
Nitrogen fixation
235 - The Singer and Nicholson model of plasma membrance differs from Robertson's model in the:
235 - The Singer and Nicholson model of plasma membrance differs from Robertson's model in the:
Arrangement of proteins
236 - The solute transport into the cells is strongly dependent on _____ and ability of cells to respire aerobically and to produce it:
236 - The solute transport into the cells is strongly dependent on _____ and ability of cells to respire aerobically and to produce it:
ATP
237 - The total volume of water on melting:
237 - The total volume of water on melting:
Decreases
238 - The transpiration is regulated by the movements of:
238 - The transpiration is regulated by the movements of:
Guard cells of the stomata
239 - The ultra-structure of cell can be best studied by:
239 - The ultra-structure of cell can be best studied by:
None of these
240 - Tick-out the correct statement:
240 - Tick-out the correct statement:
The cell wall is permeable
241 - Tonoplast is a differentially permeable membrane surrounding the:
241 - Tonoplast is a differentially permeable membrane surrounding the:
Vacuole
242 - Transpiration is minimized by the deposition of:
242 - Transpiration is minimized by the deposition of:
Cutin
243 - Transpiration occurs through:
243 - Transpiration occurs through:
All the above
244 - Turgidity of a cell is maintained by:
244 - Turgidity of a cell is maintained by:
Turgor pressure
245 - Two chief functions of leaves are:
245 - Two chief functions of leaves are:
Photosynthesis and transpiration
246 - Under which conditions the transpiration rate will be maximum?
246 - Under which conditions the transpiration rate will be maximum?
Soil is wet and atmosphere is dry
247 - Unit membrane or (Plasma membrane) is made of:
247 - Unit membrane or (Plasma membrane) is made of:
Lipoproteins
248 - Water potential concept was formulated by:
248 - Water potential concept was formulated by:
Otto Renner, 1915
249 - Water, which is an essential part of protoplasm, may constitute:
249 - Water, which is an essential part of protoplasm, may constitute:
More than three quarters of it
250 - What determines the diffusion of water accumulation of sugars?
250 - What determines the diffusion of water accumulation of sugars?
None of the above
251 - When a cell is fully turgid its:
251 - When a cell is fully turgid its:
DPD = Zero
252 - When a cell is fully turgid, which of the following will be zero?
252 - When a cell is fully turgid, which of the following will be zero?
Suction pressure (D.P.D)
253 - When a piece of potato tuber is placed in concentrated salt solution:
253 - When a piece of potato tuber is placed in concentrated salt solution:
It would become limp (shrink) due to loss of water from its solution
254 - When a plant cell is placed in a solution, which is hypotonic to the cell sap, which of the following conditions will not apply?
254 - When a plant cell is placed in a solution, which is hypotonic to the cell sap, which of the following conditions will not apply?
The wall pressure of the cell will fall
255 - When a seed is placed in a suitable medium for germination, by which of the following first process water enter into the seed coat?
255 - When a seed is placed in a suitable medium for germination, by which of the following first process water enter into the seed coat?
Imbibition
256 - When chlorophyll is burnt which one is obtained?
256 - When chlorophyll is burnt which one is obtained?
Mg
257 - When the dark period of shoft day plant is interrupted by a brief exposure of light then the plant:
257 - When the dark period of shoft day plant is interrupted by a brief exposure of light then the plant:
Will not flower at all
258 - When yeast and certain bacteria carry on anaerobic respiration they produce:
258 - When yeast and certain bacteria carry on anaerobic respiration they produce:
Carbon dioxide
259 - Which among the following is the most appropriate reason for storing green coloured apples at low temperatures:
259 - Which among the following is the most appropriate reason for storing green coloured apples at low temperatures:
The rate of respiration is reduced
260 - Which is a micronutrient?
260 - Which is a micronutrient?
Zn
261 - Which is not essential micronutrient?
261 - Which is not essential micronutrient?
Ni
262 - Which level of protein structure is affected by DNA (or for which level of protein structure DNA carries information)?
262 - Which level of protein structure is affected by DNA (or for which level of protein structure DNA carries information)?
Primary structure
263 - Which of the following are photosynthetic units?
263 - Which of the following are photosynthetic units?
Quantasomes
264 - Which of the following are short day plants?
264 - Which of the following are short day plants?
Maize
265 - Which of the following can fix atmospheric nitrogen?
265 - Which of the following can fix atmospheric nitrogen?
Anabacena
266 - Which of the following effects of auxins on plants is the basis for commercial application?
266 - Which of the following effects of auxins on plants is the basis for commercial application?
All of the above
267 - Which of the following element is concerned with the photolysis of water?
267 - Which of the following element is concerned with the photolysis of water?
Manganese
268 - Which of the following element is involved in nitrogen metabolism in reduction of nitrates?
268 - Which of the following element is involved in nitrogen metabolism in reduction of nitrates?
Molybdenum
269 - Which of the following elements can land plants, normally obtain directly from the air?
269 - Which of the following elements can land plants, normally obtain directly from the air?
Carbon
270 - Which of the following elements has not been proved to be essential for plants?
270 - Which of the following elements has not been proved to be essential for plants?
Sodium
271 - Which of the following elements is involved in nitrogen metabolism in reduction of nitrates?
271 - Which of the following elements is involved in nitrogen metabolism in reduction of nitrates?
Molybdenum
272 - Which of the following is a micronutrient?
272 - Which of the following is a micronutrient?
Copper
273 - Which of the following is a weed killer?
273 - Which of the following is a weed killer?
2,4-D
274 - Which of the following is an essential part of photosynthesis?
274 - Which of the following is an essential part of photosynthesis?
Photolysis
275 - Which of the following is capable of delaying yellowing of leaves?
275 - Which of the following is capable of delaying yellowing of leaves?
Cytokinins
276 - Which of the following is indispensable in cell culture?
276 - Which of the following is indispensable in cell culture?
Kinetin
277 - Which of the following is not a part of chlorophyll?
277 - Which of the following is not a part of chlorophyll?
Iron
278 - Which of the following is not naturally occurring plant hormone?
278 - Which of the following is not naturally occurring plant hormone?
2, 4-D
279 - Which of the following is the site of respiration within the cell?
279 - Which of the following is the site of respiration within the cell?
Mitochondrion
280 - Which of the following is the source of respiration?
280 - Which of the following is the source of respiration?
Stored food
281 - Which of the following leaves would dry up last?
281 - Which of the following leaves would dry up last?
Both surface greased
282 - Which of the following parts of a cell is non-living?
282 - Which of the following parts of a cell is non-living?
Vacuole
283 - Which of the following plants cannot fix atmosphere nitrogen directly?
283 - Which of the following plants cannot fix atmosphere nitrogen directly?
Castor
284 - Which of the following structures controls the transport of the material into and out of living cell?
284 - Which of the following structures controls the transport of the material into and out of living cell?
Cell membrane
285 - Which one is the precursor of chlorophyll?
285 - Which one is the precursor of chlorophyll?
Protochlorophyll or chlorophyllides
286 - Which one of the following elements is not required by plants for their normal healthy growth?
286 - Which one of the following elements is not required by plants for their normal healthy growth?
Lead
287 - Which one of the following factors causes an increase in transpiration rate?
287 - Which one of the following factors causes an increase in transpiration rate?
A hot dry windy day
288 - Which one of the following is a long day plant?
288 - Which one of the following is a long day plant?
Wheat
289 - Which one of the following is a prokaryote?
289 - Which one of the following is a prokaryote?
Salmonella
290 - Which one of the following is most limiting factor for nitrification in the soil?
290 - Which one of the following is most limiting factor for nitrification in the soil?
Soil reaction (pH)
291 - Which one of the following will reduce the rate of transpiration?
291 - Which one of the following will reduce the rate of transpiration?
Decrease in light intensity
292 - Which pair of structures is usually found in both plant and animal cell:
292 - Which pair of structures is usually found in both plant and animal cell:
Cell membrane and nucleolus
293 - Which pigment is essential for nitrogen fixation by leguminous plants?
293 - Which pigment is essential for nitrogen fixation by leguminous plants?
Leghaemoglobin
294 - Which pigment is is absent in chloroplast?
294 - Which pigment is is absent in chloroplast?
Anthocyanin
295 - Who proposed the concept of unit membrane for tripartite structure of lipoproteins?
295 - Who proposed the concept of unit membrane for tripartite structure of lipoproteins?
Robertson
296 - Whose technique is employed for the extraction and elimination of hormones?
296 - Whose technique is employed for the extraction and elimination of hormones?
Garner
297 - Wilting of leaves in hot weather is due to:
297 - Wilting of leaves in hot weather is due to:
Iron and calcium
298 - Wilting of plant results from excessive:
298 - Wilting of plant results from excessive:
Transpiration
299 - Without adding nitrogenous manures good yield or rice crop can be obtained because:
299 - Without adding nitrogenous manures good yield or rice crop can be obtained because:
There are nitrogen fixing algae in rice fields
300 - Zeatin has been isolated and identified from the milky endosperm of:
300 - Zeatin has been isolated and identified from the milky endosperm of:
Maize
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