A. Gibberellins
B. Cytokinins
C. Auxins
D. Abscisic Acid
Related Mcqs:
- The leaf is bilobed with midrib between them. The plant is____________?
A. Saraccnia
B. Dionaea
C. Pitcher plant
D. None of these - The contraction of which of the following muscle fibers, is controlled by hormones?
A. A smooth muscle
B. A cardiac muscle
C. A skeletal muscle.
D. All of these - The percentage of light absorbed by the leaf is ___________?
A. 20%
B. 15%
C. 10%
D. 1% - Stomata cover only ______________ of leaf surface?
A. 0.03 – 0.04%
B. 10%
C. 1-2 %
D. 50% - There are _________ stomata per square cm of leaf surface in Tobacco plants?
A. 1200
B. 12000
C. 100,000
D. 1000 - The air spaces may comprise upto _________ of total volume of leaf surface?
A. 30%
B. 20%
C. 40%
D. 50% - The place of attachment of leaf with the shoot is called__________?
A. Pith.
B. Pit.
C. Petiole
D. EcdysoneUpdated by: Haya Rai
- Stress indicating hormones are____________?
A. Cortisol
B. Adrenaline
C. ACTH
D. All of theseSubmitted by: Muhammad Jamlish Roy
- Which of the following plant group first formed true leaves________________?
A. Psilopsida
B. Lycopsida
C. Sphenopsida
D. Pteropsida - Which of the following plant group first formed true leaves?
A. Psilopsida
B. Lycopsida
C. Sphenopsida
D. PteropsidaSubmitted by: Navid Muhammad
Advertisement