Question No:1

Development in plants is mainly controlled by _____

[A] intrinsic factor
[B] extrinsic factor
[C] both
[D] none



Question No:2

Intrinsic factor for plant development includes

[A] Intercellular
[B] Intracellular
[C] Both
[D] None



Question No:3

Intercellular in the former of plant development means _____

[A] chemical regulators
[B] genetic
[C] both
[D] none



Question No:4

Intracellular in the former of plant development means _____

[A] chemical regulators
[B] genetic
[C] both
[D] none



Question No:5

Extrinsic sector for plant development includes _____

[A] light
[B] temperature
[C] water
[D] all



Question No:6

Nutrition is included in which phase of plant development?

[A] Former
[B] Latter
[C] Both
[D] None



Question No:7

Oxygen is exchanged in which phase of plant development?

[A] Former
[B] Latter
[C] Both
[D] None



Question No:8

Which of the following is not a characteristic of a PGR?

[A] They are large
[B] Simple molecules
[C] They are of diverse chemical composition
[D] None



Question No:9

Match the following for PGR.
Column I —Column II
A. IAA— i. Caretenoids
B. Kinetin — ii. Terpenes
C. ABA — iii. Indole compounds
D. GA₃— iv. Adenine derivatives

[A] (A-iii) (B-iv) (C-i) (D-ii)
[B] (A-i) (B-iii) (C-ii)
[C] (A-iv) (B-ii) (C-iii) (D-i)
[D] (A-ii) (B-i) (C-iv)(D-iv) (D-iii)



Question No:10

N⁶Furfurylavmino purine is which derivative?

[A] In dole compounds
[B] Adenine
[C] Terpenes
[D] carotenoids



Question No:11

How many of the following are phytohormones? ABA, C₂H₄, IAA, GA₃, ABA

[A] 2
[B] 3
[C] 4
[D] 5



Question No:12

Which of the following is not a plant growth promoter?

[A] Auxins
[B] Gibberellins
[C] Ethylene
[D] Abscisic acid



Question No:13

Who initiated the discovery of plant growth hormones?

[A] Charles Darwin
[B] Francis Darwin
[C] both
[D] none



Question No:14

According to Charles Darwin, which plant would help in the discovery of PGH?

[A] Larkspur
[B] Buttercup
[C] Canary grass
[D] All



Question No:15

Coleoptiles responded to _____

[A] light
[B] water
[C] touch
[D] all