Top 150+ Solved Growth and Development in Plants MCQ Questions Answer
Q. Which is incorrect option for cytokinin ?
a. Retards senescence
b. Secreted in the region of active cell division
c. Increases dominance of apical bud
d. Stimulates cell division
Q. Drooping of fruit, after fruit maturation (ripening) shows ........ .
a. Increase in amount of auxin
b. Decreases in amount of auxin
c. Reduces in amount of ABA
d. Increase gibberrelic acid
Q. Which of the following is mismatched statement for effect of auxin ?
a. It inhibits lateral growth
b. It induces stem elongation in plant
c. It induces cell division
d. It helps in further elongation of some regions
Q. Which is the specific use of synthetic auxin in higher concentration ?
a. Weedicide
b. Inhibits growth of lateral buds
c. Inhibits initial process of root formation
d. Regulates cell elongation
Q. Which is required to inhibit germination of food storing part of potato ?
a. ABA
b. IAA
c. IBA
d. GA
Q. This hormone induces growth of root but inhibits growth of .......
a. Apical bud
b. Unfertilized fruit developement
c. Lateral buds
d. Root
Q. What is indicated by any of the developing plant if it increase / hyperactivity in lateral buds ?
a. It obtains more light
b. Cytokinin decreases
c. It stores more food
d. Auxin decreases
Q. From where gibberrelin was isolated for the first time ?
a. Penicillium
b. Asparagus
c. Mucor
d. Gibberella
Q. Which of the following effect of gibberrelin is observed in plant ?
a. Long plant shorten
b. Dwarf plant grows in longitudinal axis
c. Induces formation of root system
d. Yellowing of young leaves
Q. Which of the following hormone is responsible for cell division ?
a. GA
b. IAA
c. Cytokinin
d. Abscisic acid
Q. Garland of green leaves remain green, by treatment of which organic chemical ?
a. Cytokinin
b. Auxin
c. Ethylene
d. Gibberrelin
Q. Which hormone inhibits senescence of vegetative parts and plants ?
a. Auxin
b. Cytokinin
c. Gibberrelin
d. Abscisic acid