Q.1.
Which is incorrect option for cytokinin ?
-
0%
a) Increases dominance of apical bud
-
25%
b) Retards senescence
-
25%
c) Stimulates cell division
-
50%
d) Secreted in the region of active cell division
Q.2.
Which group is correct for the growth inducer hormone ?
-
0%
a) ABA, Ethylene
-
50%
b) IAA, ABA and cytokinins
-
50%
c) IAA, Gibberrelin, cytokinins
-
0%
d) IAA, Gibberrelin, ABA
Q.3.
Which type of dormancy is induced in seeds due to adverse condition and high temperature ?
-
0%
a) Combinational dormancy
-
33%
b) Secondary dormancy
-
33%
c) Exogenous dormancy
-
33%
d) Endogenous dormancy
Q.4.
Match the list :
| Column I | Column II |
| (P) Volvox | (i) Chemotaxis |
| (Q) Mimosa | (ii) Phototaxis |
| (R) Antherozoids of bryophytes | (iii) Movement / tropism |
| (S) Leaf tendril | (iv) Thigmotropism |
-
0%
a) (P-i), (Q-ii), (R-iii), (S-iv)
-
0%
b) (P-ii), (Q-iii), (R-iv), (S-i)
-
100%
c) (P-ii), (Q-iv), (R-i), (S-iii)
-
0%
d) (P-iv), (Q-iii), (R-ii), (S-i)
Q.5.
Which type of meristematic tissue is found in monocot plant for growth ?
-
0%
a) Intercalary meristematic tissue
-
50%
b) Lateral meristem tissue
-
0%
c) Meristematic tissue
-
50%
d) Apical meristem tissue
Q.6.
Which is required to inhibit germination of food storing part of potato ?
-
50%
a) IAA
-
0%
b) IBA
-
50%
c) ABA
-
0%
d) GA
Q.7.
Which hormone inhibits formation of new cells ?
-
0%
a) Kinetin
-
50%
b) Abscisic acid
-
50%
c) Gibberrelic acid
-
0%
d) Indol-butaric acid
Q.8.
In which phase of growth size of vacuole increases ?
-
50%
a) cell difterentiation
-
50%
b) Cell elongation
-
0%
c) Cell transfer
-
0%
d) Cell formation
Q.9.
A : Adventitious roots develop by auxin in plants. R : Auxin, removes the dominant effect of apical bud.
-
50%
a) A and R both correct, R is explanation of A.
-
0%
b) A and R both correct but R is not explanation A.
-
0%
c) A = correct, R = false
-
50%
d) A = false, R = correct
Q.10.
Which hormore is essential for initial growth of root ?
-
0%
a) IBA
-
0%
b) Kinetin
-
50%
c) GA
-
50%
d) ABA
Q.11.
Which of the following stimulates growth in the internode region ?
-
50%
a) Gibberrelin
-
0%
b) Cytokinin
-
50%
c) Abscisic acid
-
0%
d) Auxin
Q.12.
Which of the following sustance is not related with initiation of growth ?
-
0%
a) Cytokinin
-
0%
b) Gibberrelin
-
100%
c) ABA
-
0%
d) IAA
Q.13.
Which type of dormancy is found when seed is impermeable to water or gaseous exchange ?
-
0%
a) Mechanical dormancy
-
0%
b) External dormancy
-
50%
c) Physical dormancy
-
50%
d) Chemical dormancy
Q.14.
Which of the following is increased in plants as a result of growth ?
-
50%
a) Width
-
0%
b) Dry volume
-
50%
c) Dry weight
-
0%
d) Number
Q.15.
What is A and B in the given figure ?
-
0%
a) Death and senescence
-
50%
b) Death and Growth
-
0%
c) Growth and death
-
50%
d) Senescence and death
Q.16.
Which is the specific use of synthetic auxin in higher concentration ?
-
0%
a) Inhibits growth of lateral buds
-
50%
b) Weedicide
-
50%
c) Inhibits initial process of root formation
-
0%
d) Regulates cell elongation
Q.17.
Which organic chemicals are included in shoot with photoperiodism ? (AIIMS-1996)
-
50%
a) Auxin
-
0%
b) Ethylene
-
0%
c) Cytokinin
-
50%
d) Gibberrelin
Q.18.
Garland of green leaves remain green, by treatment of which organic chemical ?
-
50%
a) Auxin
-
50%
b) Gibberrelin
-
0%
c) Cytokinin
-
0%
d) Ethylene
Q.19.
During physiological and physical condition some changes observed in seed, is knows as ......
-
0%
a) Combinational dormancy
-
50%
b) Secondary dormancy
-
50%
c) Exogenous dormancy
-
0%
d) Endogenous dormancy
Q.20.
Which of the following is an example of thermonasty ?
-
50%
a) Mimosa
-
0%
b) Sunflower
-
50%
c) Crocus
-
0%
d) Lotus
Q.21.
Which of the following organic chemical is synthetic ?
-
100%
a) 2-4-D
-
0%
b) IBA
-
0%
c) IAA
-
0%
d) GA
Q.22.
Which type of growth is seen in plants?
-
50%
a) Local
-
0%
b) Reversible
-
50%
c) Irreversible
-
0%
d) Increase in volume
Q.23.
Which of the following is long-day plant ?
-
0%
a) Oat
-
50%
b) Soyabean
-
0%
c) Vinca
-
50%
d) Paddy
Q.24.
How can a biannual plant be converted into an annual plant?
-
50%
a) By giving more light
-
50%
b) By cold process of seeds
-
0%
c) By giving more temperature
-
0%
d) By giving more oxygen
Q.25.
Which of the following is example of amoeboid movement ?
-
50%
a) Gamates of bryophyta
-
50%
b) Hydrilla
-
0%
c) Fungi
-
0%
d) Algae
Q.26.
Match the following :
| Column I | Column II |
| (P) Opening of leaf blade | (i) Epinasty |
| (Q) Closing of leaves | (ii) Hyponasty |
| (R) Zigzag movement in apical bud | (iii) Nutation |
| (S) Spiral and helical growth of tendrilar plants | (iv) Circumnutation |
| (T) Pulsation in leaflets of indian telegraph plant | (v) Variation |
-
50%
a) (P-i), (Q-ii), (R-iii), (S-iv), (T-v)
-
50%
b) (P-v), (Q-iv), (R-iii), (S-ii), (T-i)
-
0%
c) (P-v), (Q-i), (R-iv), (S-iii), (T-ii)
-
0%
d) (P-v), (Q-i), (R-iv), (S-ii), (T-iii)
Q.27.
Which is natural growth inhibitor or senescence inducing hormone ?
-
0%
a) GA
-
100%
b) ABA
-
0%
c) NAA
-
0%
d) IAA
Q.28.
What is apical dominance?
-
0%
a) Removal of apical bud hinders growth of lateral buds
-
50%
b) Development of lateral buds hinders due to presence of apical bud
-
0%
c) Growth of apical bud is inhibited due to nearby lateral buds
-
50%
d) Growth of apical bud is promoted due to removal of nearest lateral buds
Q.29.
Which of the following is simple, volatile hormone ?
-
50%
a) Cytokinin
-
50%
b) ABA
-
0%
c) Ethylene
-
0%
d) IAA
Q.30.
Zeatin is an example of
-
50%
a) Gibberrellin
-
0%
b) Auxin
-
50%
c) Cytokinin
-
0%
d) ABA
Q.31.
Which hormone is absent in dormnant seed ?
-
0%
a) Ethylene
-
50%
b) ABA
-
50%
c) GA
-
0%
d) Auxin
Q.32.
Which substances are secreted at the apex of plant and they regulates growth of another region ?
-
100%
a) Hormones
-
0%
b) Vitamins
-
0%
c) Enzymes
-
0%
d) None of the above
Q.33.
What is the maximum period of growth ?
-
0%
a) Slow growth rate
-
0%
b) Steady growth rate
-
50%
c) Speedy growth rate
-
50%
d) Senescence phase
Q.34.
With which reaction Phytochrome is associated ?
-
50%
a) Photo-period
-
0%
b) Geotropism
-
50%
c) Photorespiration
-
0%
d) Phototropism
Q.35.
What is responsible for opening and closing of tulip flower ?
-
50%
a) Nictinasty
-
50%
b) Photonastic movement
-
0%
c) Geotropism
-
0%
d) Thermonasty
Q.36.
Which of the following is found in high concentration in healthy leaf ?
-
0%
a) Ethylene
-
50%
b) Cytokinin
-
0%
c) Auxin
-
50%
d) Gibberrelin
Q.37.
Which activity in plant is observed due to ethylene ?
-
50%
a) Maturation of flower
-
50%
b) Maturation of fruit
-
0%
c) Matutiation of leaf
-
0%
d) Maturation of seeds
Q.38.
Which of the following is water stress hormone? ( BHU 1998)
-
100%
a) Abscisic acid
-
0%
b) 2,4- dichlorophenoxy acetic acid
-
0%
c) Benzyl amino purine
-
0%
d) Ethylene
Q.39.
What is the colour of Phytochrome pigment ?
-
100%
a) Red
-
0%
b) Yellowish green
-
0%
c) Bluish
-
0%
d) Pink
Q.40.
In which type of dormancy, due to hardness of seed coats or integuments, embryo could not expand during germination ?
-
0%
a) Chemical dormancy
-
50%
b) Mechanical dormancy
-
0%
c) Physical dormancy
-
50%
d) External dormancy
Q.41.
When is abscission- layer formed? (AIIMS- 1980)
-
50%
a) With increased concentration of auxin
-
0%
b) With increased concentration of gibberrelin
-
0%
c) With decreased concentraton of gibberelin
-
50%
d) With decreased concentration of auxin
Q.42.
What is the cause of `Bakane’ disease?
-
50%
a) Fungi
-
50%
b) Bacteria
-
0%
c) Virus
-
0%
d) Algae
Q.43.
Sensitivity of leaves in Mimosa, depends on which factor ?
-
0%
a) Water
-
50%
b) Touch
-
50%
c) Temperature
-
0%
d) Light
Q.44.
This hormone induces growth of root but inhibits growth of .......
-
0%
a) Root
-
50%
b) Lateral buds
-
50%
c) Apical bud
-
0%
d) Unfertilized fruit developement
Q.45.
Which of the following is criteria for measurement of growth ?
-
0%
a) Volume
-
0%
b) Number
-
0%
c) Weight
-
100%
d) All a, b, c
Q.46.
Which of the example is improper for tropic movement ?
-
50%
a) Volvox
-
0%
b) Mimosa
-
0%
c) Antherozoids of pteridophytes
-
50%
d) Antherozoids of bryophytes
Q.47.
Which of the following is correct option for seed germination ?
-
100%
a) Emergance of primary root forms from radicle
-
0%
b) Development of primary root
-
0%
c) No root formation
-
0%
d) Emergance of radicle from primary root
Q.48.
Which of the following effect of gibberrelin is observed in plant ?
-
50%
a) Induces formation of root system
-
0%
b) Long plant shortens
-
50%
c) Dwarf plant grows in longitudinal axis
-
0%
d) Yellowing of young leaves
Q.49.
Which type of dormancy, inhibits embryo growth and germination in seed ?
-
50%
a) Mixed dormancy
-
50%
b) Endogenous dormancy
-
0%
c) External dormancy
-
0%
d) Physiological dormancy
Q.50.
Which physilogical reaction is essential for development leaftendril ?
-
0%
a) Circumnutation
-
50%
b) Nastism
-
50%
c) Curvature
-
0%
d) Tropism