Q.1.
Heterophylly in cotton is an example of:
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57%
a) Plasticity
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14%
b) Differentiation
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14%
c) Senescence
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14%
d) De-differentiation
Q.2.
What is true about phytochrome?
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25%
a) Pfr absorbs red light and becomes Pr
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0%
b) Pfr absorbs yellow light and becomes Pr.
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50%
c) Pr absorbs yellow light and becomes Pfr
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25%
d) Pr absorbs red light and becomes Pfr
Q.3.
Mention part A and B, labelled in the figure.
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25%
a) Epicotyl, Lateral roots
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0%
b) Epicotyl, radicle
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50%
c) Hypocotyl, Lateral roots
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25%
d) Radicle, primary root
Q.4.
In certain condition, dividing cell, loose their ability of cell division, it is called .......
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0%
a) De-differentiation
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25%
b) Differentiation
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50%
c) Cleavage
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25%
d) Undifferentiation
Q.5.
Read the following statements carefully and answer the correct one from the codes given below: (I) Growth is unidimensional, permanent and reversible change. (II) Growth is unidimensional, permanent and irreversible change. (III) Growth is polydimensional, permanent and irreversible change. (IV) Growth increases the dry weight of growing part.
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0%
a) I and II are correct
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100%
b) II and III are correct
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0%
c) III and IV are correct
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0%
d) All of these are correct
Q.6.
A phytohormone, which increases the production of starch hydrolysing enzymes during the germination of maize seed, is employed for the following:
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0%
a) It causes fruit like apple to elongate and improve its shape
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0%
b) Induction of flowering in pineapples.
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67%
c) They promote nutrient mobilization which helps in delay of leaves senescence
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33%
d) Eradication of dicot weeds
Q.7.
Match and choose the correct option:
| Human urine | a. Cytokinin |
| Gibberella fujikuroi | b. Auxin |
| Herring fish DNA | c. Ethylene |
| Ripened fruits | d. Abscisic acid |
| Aged leaves of plants | e. Gibberellins |
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67%
a) 1 → b, 2 →e , 3→a , 4→ c , 5 → d
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0%
b) 1 → b, 2 →c , 3→d , 4→ e , 5 → a
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0%
c) 1 → a, 2 →e , 3→b , 4→ d , 5 → c
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33%
d) 1 → e, 2 →d , 3→c , 4→ b , 5 → a
Q.8.
Which is an essential temperature for more production of wheat by noting effect of low temperature ?
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33%
a) 1to10°C
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0%
b) 1to 20°C
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67%
c) 25to30°C
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0%
d) 28to30°C
Q.9.
Which of the following statement about ABA is inappropriate ?
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0%
a) Induces ripening of fruit
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0%
b) Closes stomata
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33%
c) Inhibits seed germination
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67%
d) Induces dormancy of bud
Q.10.
A : Cytokinin is cytoplasmic hormone. R : Cytokinin induced cell division.
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33%
a) A and R both correct, R is explanation of A.
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0%
b) A and R both correct but R is not explanation A.
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0%
c) A = correct, R = false
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67%
d) A = false, R = correct
Q.11.
Which of the following is responsible for seed dormancy ?
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33%
a) Gibberrelin
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0%
b) Auxin
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67%
c) Abscissic acid
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0%
d) Ethylene
Q.12.
What is the optimum temperature for growth of the plants ?
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50%
a) 0 to 28°C
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0%
b) 25 to 30°C
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0%
c) 28 to 30°C
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50%
d) 0 to 30°C
Q.13.
Flowering due to low temperature is .........
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50%
a) Photonasty
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0%
b) Thermonasty
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0%
c) Nutation
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50%
d) Vernalization
Q.14.
Which type of light is required in long day plants for flowering ?
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0%
a) Less light than alloted time period
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50%
b) More light than alloted period
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0%
c) Red light
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50%
d) All of the given
Q.15.
Cytokinin is formed in which of the following region ?
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67%
a) Regions of senescence
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0%
b) Regions of abscission
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0%
c) Regions of cell division
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33%
d) Region of cell elongation
Q.16.
Which hormone is essential in pineapple for inducing flowering, without season ?
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50%
a) Zeatin
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50%
b) NAA
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0%
c) Ethylene
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0%
d) Abscisic acid
Q.17.
Mention the effect of cytokinin
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0%
a) It maintains dormancy
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50%
b) It induces cell division and retards the process of senescence
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0%
c) It inhibits cell division
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50%
d) It induces senescence
Q.18.
Which of the following phenomenon is regulated by abscisic acid ?
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0%
a) Opening and closing of stomata
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50%
b) Abscission of leaf and dormancy
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50%
c) Origin of cell wall and cell elongation
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0%
d) Shoot elongation
Q.19.
Photoperiodism is .........
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50%
a) Irregular growth based on light
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0%
b) Time table of day-night based on light
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50%
c) Effect of length of day on flowering
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0%
d) Flowering plant
Q.20.
By which reaction growth of cuscuta occurs on host plant ?
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0%
a) Photonasty
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0%
b) Thigmonasty
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0%
c) Chemtropism
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100%
d) Thigmotropism
Q.21.
Which hormone reduces the dominance of apical bud ? Explanation is provided please click on
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50%
a) Auxin
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0%
b) ABA
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50%
c) Ethylene
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0%
d) Cytokinin
Q.22.
Tropic movement is due to
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0%
a) Bidirectional effect of environmental factors on plant parts
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50%
b) Unidirectional effect of environmental factors on plant parts
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50%
c) Multidirectional effect of environmental factors on plant parts
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0%
d) No effect of environmental factors on plant parts
Q.23.
A : Flowering is natural phenomenon in plants. R : If photoperiodism is fixed, increases flowering in plants
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50%
a) A and R both correct, R is explanation of A.
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0%
b) A and R both correct but R is not explanation A.
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50%
c) A = correct, R = false
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0%
d) A = false, R = correct
Q.24.
Which of the following group show viviparous germination ?
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0%
a) Soyabean and Xanthium
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0%
b) Rhizophora and Avicinnia
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100%
c) Maize and Bean
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0%
d) Orchid and Rhizophora
Q.25.
Which apparatus is used for exact measuring of growth of plants in longitudinal axis ?
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0%
a) Measuring scale
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0%
b) Sphigomanometer
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50%
c) Auxanometer
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50%
d) Manometer
Q.26.
What is the type of dormancy in which embryo do not differentiate into various tissue at the time of fruit maturation ?
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0%
a) Physiological dormancy
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0%
b) Internal dormancy
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100%
c) Mixed dormancy
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0%
d) External dormancy
Q.27.
From where auxin was isolated for the first time ?
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50%
a) Paddy plant
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50%
b) Human urine
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0%
c) Coleoptile of oat
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0%
d) Sperm cell of herring fish
Q.28.
Which plant show movement from intense light to dim light ?
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0%
a) Volvox
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100%
b) Plankton
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0%
c) Lotus
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0%
d) Hydrilla
Q.29.
What is called the effect of daylight on plant ?
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0%
a) Phototropic
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0%
b) Photooxidation
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100%
c) Photoperiodism
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0%
d) Photonastism
Q.30.
Covering surrouding embryo contain growth inhibitor hormone for .......... dormancy.
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50%
a) External dormancy
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50%
b) Chemical dormncy
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0%
c) Physical dormancy
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0%
d) Mechanical dormancy
Q.31.
Drooping of fruit, after fruit maturation (ripening) shows ........ .
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0%
a) Increase gibberrelic acid
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0%
b) Decreases in amount of auxin
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50%
c) Increase in amount of auxin
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50%
d) Reduces in amount of ABA
Q.32.
By which condition flowering take place in short day plant ?
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0%
a) Long day and short night
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0%
b) Short night
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50%
c) Short day and long night
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50%
d) Short day and short night
Q.33.
A : Seed is active condensed plant. R : It shows specific dormancy and get activated.
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100%
a) A and R both correct, R is explanation of A.
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0%
b) A and R both correct but R is not explanation A.
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0%
c) A = correct, R = false
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0%
d) A = false, R = correct
Q.34.
Which is incorrect for the effects of auxin ?
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0%
a) Induces -ve phototropism in roots
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50%
b) Induces growth and length in stem
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0%
c) Induces +ve phototropism
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50%
d) Shows apical dominance
Q.35.
Which of the following should be used for the control of weeds in farms ?
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50%
a) Auxin
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0%
b) Ethylene
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50%
c) Gibberrelin
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0%
d) Cytokinin
Q.36.
What is the period of cell formation to cell differntiation ?
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50%
a) Maximum growth period
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0%
b) Sigmoid graph
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50%
c) Normal growth period
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0%
d) Grand period of growth
Q.37.
Which is the labelled part A and B given in the figure ?
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0%
a) Fruit and hypocotyl
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0%
b) Cotyledon and plumble
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0%
c) Cotyledon and Hypocotyl
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100%
d) Cotyledon and Epicotyl
Q.38.
Match the list :
| Column I | Column II |
| (P) Phototropism | (i) Water |
| (Q) Geotropism | (ii) Gravitation |
| (R) Hydrotropism | (iii) Light |
| (S) Thigmotropism | (iv) Touch |
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0%
a) (P-i), (Q-ii), (R-iii), (S-iv)
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50%
b) (P-iii), (Q-ii), (R-i), (S-iv)
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0%
c) (P-iv), (Q-iii), (R-ii), (S-i)
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50%
d) (P-iii), (Q-ii), (R-iv), (S-i)
Q.39.
A : Ethylene inhibits logitudinal growth of root stem and leaves. R : Ethylene is growth inhibitor, maturation hormone.
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100%
a) A and R both correct, R is explanation of A.
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0%
b) A and R both correct but R is not explanation A.
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0%
c) A = correct, R = false
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0%
d) A = false, R = correct
Q.40.
A : Tropism is unidirectional. R : Specific modifications observed in plant due to tropism.
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100%
a) A and R both correct, R is explanation of A.
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0%
b) A and R both correct but R is not explanation A.
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0%
c) A = correct, R = false
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0%
d) A = false, R = correct
Q.41.
Which of the following is mismatched statement for effect of auxin ?
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100%
a) It helps in further elongation of some regions
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0%
b) It induces cell division
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0%
c) It inhibits lateral growth
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0%
d) It induces stem elongation in plant
Q.42.
What is the main origin of cytokinin?
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0%
a) Young leaves
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0%
b) Lateral buds
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100%
c) Root apex
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0%
d) Stem apex
Q.43.
If cells obtain ability of cell division in certain circumstances, it is called .........
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0%
a) Undifferentiation
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0%
b) Cleavage
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0%
c) De-Deferentiation
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100%
d) Differentiation
Q.44.
A : Nastism is undirectional. R : Induced factors are essential for nastism.
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100%
a) A and R both correct, R is explanation of A.
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0%
b) A and R both correct but R is not explanation A.
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0%
c) A = correct, R = false
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0%
d) A = false, R = correct
Q.45.
Which of the following is incorrect for tropism ?
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0%
a) Hydrotropism
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0%
b) Phototropism
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0%
c) Thermotropism
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100%
d) Thigmotaxis
Q.46.
Which of the following organic substance is growth inhibitor ?
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0%
a) GA
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100%
b) ABA
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0%
c) IAA
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0%
d) IBA
Q.47.
Which factor increases in plant in absence of light ?
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0%
a) Area of leaf-blade increase, rate of transpiration increases.
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100%
b) Availability of water, increases ascent of sap.
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0%
c) Availability of mineral ion, increases mineral nutrition
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0%
d) Length of internode increases, growth of plant in longitudinal axis.
Q.48.
Match the following :
| Column I | Column II |
| (P) Zoospore of volvox | (i) Thermo taxis |
| (Q) Antherozoids of bryophytes and pteridophytes | (ii) Thigmo taxis |
| (R) Diatoms | (iii) Photo taxis |
| (S) Zoospores in oedogonium | (iv) Chemo taxis |
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0%
a) (P-i), (Q-ii), (R-iii), (S-iv)
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100%
b) (P-iv), (Q-iii), (R-ii), (S-i)
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0%
c) (P-iii), (Q-iv), (R-i), (S-ii)
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0%
d) (P-iii), (Q-ii), (R-i), (S-iv)
Q.49.
From where indole acetic acid an organic substance was isolated for the first time ?
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100%
a) Human urine
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0%
b) Gibberrela
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0%
c) Fish
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0%
d) Animal fat
Q.50.
Which type of dormancy is found in seed causes physiology and external dormancy ?
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100%
a) External dormancy
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0%
b) Physiological dormancy
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0%
c) Endogenous dormancy
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0%
d) Mixed dormancy