Question 1

induces dormancy in seeds and buds and causes stomata to close.

Accepted Answer

A)   Gibberellin
B)   Cytokinin
C)   Ethylene
D)   Auxin
E)   Abscisic acidF) None of the above
G) B) and E)

Question 2

If a coleus plant becomes tall and spindly, what can you do to encourage it to develop lateral branches, so that it becomes bushier?

Accepted Answer

Cut or pinch off the topmost (...

Question 3

maintains seed dormancy, and ends seed dormancy by stimulating enzymes that break down the food reserves of the seed to fuel seedling growth.

Accepted Answer

A)   Abscisic acid; ethylene
B)   Auxin; cytokinin
C)   Cytokinin; auxin
D)   Gibberellin; abscisic acid
E)   Abscisic acid; gibberellinF) A) and B)
G) C) and D)

Question 4

Leaves of the Venus flytrap and other sensitive plants move quickly due to

Accepted Answer

A)   reduced permeability to potassium ions.
B)   muscle- like plant cells called myophytes.
C)   an electrical stimulus and rapid diffusion of ions out of motor cells.
D)   hormones that cause plant cell movement.E) B) and D)
F) A) and C)

Question 5

Vibrations from an insect trapped inside a carnivorous sundew and thrashing around to escape stimulate the sundew's response. What happens next?

Accepted Answer

A)   The sundew's leaves snap shut and their spiked edges mesh, trapping the insect.
B)   An electrical shock kills the insect.
C)   Thigmotropism is activated, and it kills the insect.
D)   The plant secretes a cocktail of digestive enzymes that rapidly breaks down the insect's body.E) A) and C)
F) All of the above

Question 6

Auxin

Accepted Answer

A)   promotes phototropism.
B)   stimulates flowering.
C)   promotes cell division.
D)   causes the development of an abscission layer.
E)   inhibits stem elongation.F) D) and E)
G) C) and E)

Question 7

Seed germination is stimulated by

Accepted Answer

A)   cytokinin.
B)   abscisic acid.
C)   florigen.
D)   ethylene.
E)   gibberellin.F) A) and D)
G) D) and E)

Exam 46: Plant Responses to the Environment

Leaves of the Venus flytrap and other sensitive plants move quickly due to

Correct Answer
verified

maintains seed dormancy, and ends seed dormancy by stimulating enzymes that break down the food reserves of the seed to fuel seedling growth.

Correct Answer
verified

induces dormancy in seeds and buds and causes stomata to close.

Correct Answer
verified

If a coleus plant becomes tall and spindly, what can you do to encourage it to develop lateral branches, so that it becomes bushier?

Correct Answer
verified
Cut or pinch off the topmost (...
View Answer

Auxin

Correct Answer
verified

Vibrations from an insect trapped inside a carnivorous sundew and thrashing around to escape stimulate the sundew's response. What happens next?

Correct Answer
verified

Seed germination is stimulated by

Correct Answer
verified

Exam 46: Plant Responses to the Environment

Leaves of the Venus flytrap and other sensitive plants move quickly due to

Correct AnswerverifiedShow Answer

maintains seed dormancy, and ends seed dormancy by stimulating enzymes that break down the food reserves of the seed to fuel seedling growth.

Correct AnswerverifiedShow Answer

induces dormancy in seeds and buds and causes stomata to close.

Correct AnswerverifiedShow Answer

If a coleus plant becomes tall and spindly, what can you do to encourage it to develop lateral branches, so that it becomes bushier?

Correct AnswerverifiedCut or pinch off the topmost (...View AnswerShow Answer

Auxin

Correct AnswerverifiedShow Answer

Vibrations from an insect trapped inside a carnivorous sundew and thrashing around to escape stimulate the sundew's response. What happens next?

Correct AnswerverifiedShow Answer

Seed germination is stimulated by

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Cut or pinch off the topmost (...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified