MCQs-9 (PGRs)
(1) Ethylene producing fruits are........
a. Banana
b. Mango
c. Apple
d. All of the above
(2) Anti-gibberelline compound include............
a. Phosphon – D
b. Cycocel
c. CCC
d. All of the above
(3) The hormone ............... initiates the ripening process.
a. Cytokinine
b. Auxin
c. Gibberelline
d. Ethylene
(4) Which of the following hormone is found in gaseous form?
a. Cytokinine
b. Gibberelline
c. Auxin
d. Ethylene
(5) Which of the following statement is incorrect?
a. Auxins are the most important plant hormone.
b. Auxins are produced at the region of elongation.
c. Indole acetic Acid (IAA) is a principal auxin.
d. Auxins are also important in regulating the fall of leaves and fruits.
(6) Which plant hormone helps in breaking the dormancy of plant?
a. Cytokinine
b. Auxin
c. Gibberelline
d. ABA
(7) Which of the following hormone help in the cell division and development in the presence of auxins?
a. Gibberelline
b. Auxin
c. Cytokinine
d. ABA
(8) Which hormone is formed in leaves and helps in the blooming of the flowers?
a. Gibberelline
b. Florigens
c. Traumatic
d. ABA
(9) Which plant hormone is helpful in making RNA and protein?
a. ABA
b. Auxin
c. Cytokinine
d. Gibberelline
(10) Which one of the following pairs, is not correctly matched?
a. IAA – Cell wall elongation
b. Abscisic acid – Stomatal closure
c. Gibberellic acid – Leaf fall
d. Cytokinin – Cell division
