Question 1

Plant hormones are small organic molecules produced by the plants themselves.

Accepted Answer

A) True 
 B)False  True

Question 2

In a mature embryo, the epicotyl is the portion between the cotyledon(s) that contributes to root development.

Accepted Answer

A) True 
 B)False

Question 3

Plants can "migrate" from one area to another. Which of the following would allow a plant population to migrate the fastest?

Accepted Answer

A)   pollination
B)   fertilization
C)   germination
D)   seed dispersal
E)   asexual or vegetative propagation

Question 4

Techniques for tissue culture vary, but most begin with cells from the meristem of the parent plant.

Accepted Answer

A) True 
 B)False

Question 5

What would be the outcome of applying ethylene to a bushel of oranges?

Accepted Answer

A)   Ethylene stimulates cellulase, which will hydrolyze the cellulose in plant cell walls. This will cause the fruit to ripen.
B)   Ethylene will initiate and maintain seed dormancy as well as bring about the closure of the stomata.
C)   Ethylene stimulates cellulase, which will hydrolyze the proteins in plant cell walls. This will cause the fruit to ripen.
D)   Ethylene stimulates cellulase, which will hydrolyze the lipids in plant cell walls. This will cause the fruit to ripen.
E)   Ethylene stimulates cell division, which will cause the fruit to ripen.

Question 6

Stored food in a eudicot cotyledon was derived from

Accepted Answer

A)   part of the stigma.
B)   the fruit.
C)   triploid endosperm.
D)   the egg nucleus.
E)   the ovary. C

Question 7

What pathway is directly responsible for producing the gametophytes during the alternation of generations in plants?

Accepted Answer

A)   mitosis
B)   meiosis
C)   binary fission
D)   both mitosis and meiosis
E)   None of the answer choices will produce gametophytes.

Question 8

Which of the following structures protects the embryo until conditions favor regrowth?

Accepted Answer

A)   embryo
B)   endosperm
C)   seed coat
D)   ovary
E)   sperm

Question 9

Plant hormones bring about a physiological response in the plant after binding to the nucleus of the plant cells.

Accepted Answer

A) True 
 B)False

Question 10

Cross-pollination occurs when pollen from an anther of one plant is transferred to the stigma of another plant of the same species.

Accepted Answer

A) True 
 B)False  True

Question 11

If strawberry plants do not produce seeds that are used for next year's crop, how are strawberry plants propagated?

Accepted Answer

A)   from flowers
B)   from pollen
C)   from the nodes of stolons
D)   from tissue culture
E)   from protoplasts

Question 12

A hormone called cytokinin was discovered in coconut milk and found to stimulate cell division. With this function, where else in a plant would you expect to find cytokinin?

Accepted Answer

A)   bark
B)   pith
C)   root tips
D)   spongy mesophyll
E)   xylem

Question 13

Ovules contain the microspore mother cell.

Accepted Answer

A) True 
 B)False

Question 14

Which structure is the only food source for a developing monocot embryo?

Accepted Answer

A)   radicle
B)   cotyledon
C)   endosperm
D)   epicotyl
E)   hypocotyl

Question 15

Plants could readily develop seasonal responses based on temperature changes, but have evolved their rhythms based on a comparison of daylight and darkness. Why has the day-night ratio system been selected?

Accepted Answer

A)   Temperature has no effect upon plant biochemistry.
B)   Temperature is a gradation, but day/night is all or nothing.
C)   A plant's nervous system is tuned to light stimuli and not to temperature stimuli.
D)   Temperatures fluctuate widely across seasons and from year to year, but photoperiod comparisons are a more reliable indicator of season.
E)   Having a day-night system makes plants more likely to be an evolutionary success since animals follow day-night cycles as well.

Question 16

After a seed has been produced, it often has a time during which no growth occurs called

Accepted Answer

A)   pre-germination.
B)   senescence.
C)   suspended animation.
D)   dormancy.
E)   hibernation.

Question 17

Which of the following is part of the male portion of the flower?

Accepted Answer

A)   filament
B)   carpel
C)   pistil
D)   stigma
E)   style

Question 18

The protective sheath that first surrounds the plumule of a monocot is called the

Accepted Answer

A)   cotyledon.
B)   coleoptile.
C)   plumule.
D)   radicle.
E)   epicotyl.

Question 19

The male gametophyte in flowering plants will be found within the

Accepted Answer

A)   carpel.
B)   ovary.
C)   sepal.
D)   filament.
E)   pollen grain.

Question 20

Which of the following plant hormones prevents senescence and can initiate leaf growth?

Accepted Answer

A)   indoleacetic acid
B)   gibberellin
C)   cytokinin
D)   abscisic acid
E)   ethylene

Exam 10: Plant Reproduction and Responses

Plant hormones are small organic molecules produced by the plants themselves.

Correct AnswerverifiedTrue

In a mature embryo, the epicotyl is the portion between the cotyledon(s) that contributes to root development.

Correct AnswerverifiedShow Answer

Plants can "migrate" from one area to another. Which of the following would allow a plant population to migrate the fastest?

Correct AnswerverifiedShow Answer

Techniques for tissue culture vary, but most begin with cells from the meristem of the parent plant.

Correct AnswerverifiedShow Answer

What would be the outcome of applying ethylene to a bushel of oranges?

Correct AnswerverifiedShow Answer

Stored food in a eudicot cotyledon was derived from

Correct AnswerverifiedC

What pathway is directly responsible for producing the gametophytes during the alternation of generations in plants?

Correct AnswerverifiedShow Answer

Which of the following structures protects the embryo until conditions favor regrowth?

Correct AnswerverifiedShow Answer

Plant hormones bring about a physiological response in the plant after binding to the nucleus of the plant cells.

Correct AnswerverifiedShow Answer

Cross-pollination occurs when pollen from an anther of one plant is transferred to the stigma of another plant of the same species.

Correct AnswerverifiedTrue

If strawberry plants do not produce seeds that are used for next year's crop, how are strawberry plants propagated?

Correct AnswerverifiedShow Answer

A hormone called cytokinin was discovered in coconut milk and found to stimulate cell division. With this function, where else in a plant would you expect to find cytokinin?

Correct AnswerverifiedShow Answer

Ovules contain the microspore mother cell.

Correct AnswerverifiedShow Answer

Which structure is the only food source for a developing monocot embryo?

Correct AnswerverifiedShow Answer

Plants could readily develop seasonal responses based on temperature changes, but have evolved their rhythms based on a comparison of daylight and darkness. Why has the day-night ratio system been selected?

Correct AnswerverifiedShow Answer

After a seed has been produced, it often has a time during which no growth occurs called

Correct AnswerverifiedShow Answer

Which of the following is part of the male portion of the flower?

Correct AnswerverifiedShow Answer

The protective sheath that first surrounds the plumule of a monocot is called the

Correct AnswerverifiedShow Answer

The male gametophyte in flowering plants will be found within the

Correct AnswerverifiedShow Answer

Which of the following plant hormones prevents senescence and can initiate leaf growth?

Correct AnswerverifiedShow Answer

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