Course

Introductory Biology

Study Pack

Set 46 Plant Responses To The Environment

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Question 1

(Multiple Choice)

Free
The synthetic herbicide 2,4- D is actually a(n)

A) florigen.
B) gibberellin.
C) ethylene gas.
D) cytokinin.
E) auxin.

Answer

Question 2

(Multiple Choice)

Free
Why do bananas in a bag ripen so much faster than bananas on a counter top?

A) Auxins are present in low concentrations in the bag because sunlight stimulates the production of this hormone.
B) Abscisic acid, produced by the fruit, is trapped in the bag.
C) Ethylene, produced by the fruit, is trapped in the bag.
D) Cytokinins are present in low concentrations in the bag because sunlight stimulates the production of this hormone.
E) The bag holds in more moisture.

Answer

Question 3

(Multiple Choice)

Free
The hormone was named after the fungus that causes "foolish seedling" disease in rice.

A) cytokinin
B) gibberellin
C) ethylene
D) auxin
E) florigen

Answer