Course

Introductory Biology

Study Pack

Set 38 Plant Developmental Responses To External And Internal Signals

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Question 1

(Multiple Choice)

Free
You would like to develop an herbicide that is structurally most similar to cytokinin. Which of the following molecules would you use as starting material?

A) Adenine
B) Glucose
C) Naphthaleneacetic acid
D) α-amylase
E) A steroid

Answer

Question 2

(Multiple Choice)

Free
Which of the following would be the most likely consequence of removing the apical meristem from a plant?

A) The plant dies.
B) The plant remains alive but will not grow again.
C) The growth of axillary buds is inhibited.
D) The axillary buds die.
E) Some axillary buds grow into branches.

Answer

Question 3

(Multiple Choice)

Free
The herbicides (weed killers) 2,4-D and 2,4,5-T are examples of synthetic

A) abscisic acid.
B) auxins.
C) cytokinins.
D) ethylene.
E) gibberellins.

Answer