Multiple Choice
On a hot, dry day a plant closes its stomata thereby conserving water. Which plant hormone is responsible for the closing of the stomata?
A) auxin
B) gibberellin
C) ethylene
D) cytokinin
E) abscisic acid
Correct Answer:
Verified
Correct Answer:
Verified
Q12: The place where pollination occurs is the
Q13: The following diagram depicts the life cycle
Q14: Phytochrome is the pigment responsible for _.<br>A)thigmotropism<br>B)phototropism<br>C)gravitropism<br>D)photoperiodism<br>E)heliotropism
Q15: Most of an apple fruit is derived
Q16: What plant hormone has a central role
Q18: Match the plant hormone with its description.
Q19: The structure at the tip of a
Q20: In a eudicot seed, which structure emerges
Q21: Gibberellin induces _.<br>A)plants to bend toward the
Q22: What is the principal substance that mediates