Chapter 19. 19·4–19·7 Hormones regulate growth and development.

Show What You Know - Self Quiz
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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 19·4–19·7 Hormones regulate growth and development by answering the following questions.

1.

1. Hormones in plants are produced:

A.
B.
C.
D.
E.
Correct. (See section 19·4 Hormones help plants respond to their environments.)
Incorrect. (See section 19·4 Hormones help plants respond to their environments.)

2.

2. When seedless grapes are sprayed with large amounts of a certain plant hormone, the grapes grow larger and the stems elongate allowing more space for the grapes. Which plant hormone has this effect on grapes?

A.
B.
C.
D.
E.
Correct. (See section 19·5 Seed germination and stem elongation are stimulated by gibberellins.)
Incorrect. (See section 19·5 Seed germination and stem elongation are stimulated by gibberellins.)

3.

3. In plants, abscisic acid:

A.
B.
C.
D.
E.
Correct. (See section 19·7 Other plant hormones regulate flowering, fruit ripening, and responses to stress.)
Incorrect. (See section 19·7 Other plant hormones regulate flowering, fruit ripening, and responses to stress.)

4.

4. Which of the following plant hormones influences plant orientation making sure the right ends are up or down?

A.
B.
C.
D.
E.
Correct. (See section 19·6 Seedlings grow and properly orient themselves under the direction of auxins.)
Incorrect. (See section 19·6 Seedlings grow and properly orient themselves under the direction of auxins.)

5.

5. Cell division in plants is stimulated by the hormone:

A.
B.
C.
D.
E.
Correct. (See section 19·7 Other plant hormones regulate flowering, fruit ripening, and responses to stress.)
Incorrect. (See section 19·7 Other plant hormones regulate flowering, fruit ripening, and responses to stress.)

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