Question 1

Which of the following structures may be missing in a bisexual flower?

Accepted Answer

A)   carpels
B)   stamens
C)   sepals
D)   ovules
E)   anthersF) A) and E)
G) C) and E)

Question 2

Cytokinins may help promote the growth of new plants in tissue culture.

Accepted Answer

A) True 
 B)False

Question 3

In order for senescence to be prevented, which hormone needs to be present in the plant?

Accepted Answer

A)   gibberellins
B)   cytokinins
C)   abscisic acid
D)   ethylene
E)   auxinF) A) and B)
G) A) and E)

Question 4

Plants are naturally able to reproduce asexually because they contain meristematic tissue.

Accepted Answer

A) True 
 B)False

Question 5

Long day/short night plants bloom when the night length is greater than a critical length.

Accepted Answer

A) True 
 B)False

Question 6

Because tomatoes contain seeds they are classified as a(n)

Accepted Answer

A)   dry fruit.
B)   pome.
C)   stone fruit.
D)   berry.
E)   legume.F) A) and D)
G) C) and E)

Question 7

Monocot seeds differ from eudicot seeds because in monocot seeds,

Accepted Answer

A)   the cotyledons absorb the stored food of the endosperm.
B)   the endosperm is retained.
C)   there are two cotyledons instead of one.
D)   there is no seed coat.
E)   the endosperm develops into the embryo.F) C) and D)
G) A) and B)

Question 8

A root growing into the Earth is exhibiting negative gravitropism.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is not an effect of gibberellins?

Accepted Answer

A)   stem elongation between nodes
B)   cell elongation
C)   breaking of dormancy
D)   ripening of fruit
E)   excessive stem elongationF) All of the above
G) A) and B)

Question 10

Short day/long night plants

Accepted Answer

A)   bloom after a certain length of continuous daylight.
B)   bloom after a certain length of continuous darkness.
C)   bloom only at night.
D)   use other environmental stimuli to trigger flowering.
E)   bloom only during the day.F) A) and D)
G) A) and C)

Question 11

The aging process in plants is known as _______.

Accepted Answer

A)   senescence
B)   dormancy
C)   abscission
D)   apical dominance
E)   gravitropismF) A) and B)
G) C) and D)

Question 12

Plant hormones

Accepted Answer

A)   are receptor proteins.
B)   are chemical signaling molecules.
C)   are produced only in the apical meristem.
D)   are produced both in the apical meristem and the vascular cambium.
E)   are proteins.F) A) and E)
G) C) and E)

Question 13

Plant growth in response to an environmental stimulus is called

Accepted Answer

A)   apical dominance.
B)   a tropism.
C)   senescence.
D)   a photoperiod.
E)   dormancy.F) A) and E)
G) B) and E)

Question 14

An advantage of using genetically modified plants is that they

Accepted Answer

A)   are genetically identical to the parent plant.
B)   grow much more quickly.
C)   may possess superior characteristics than the original plant.
D)   are always virus-free.
E)   cannot undergo asexual reproduction.F) B) and C)
G) A) and E)

Question 15

Production of cloned plants by using pollen is called

Accepted Answer

A)   tissue culture.
B)   anther culture.
C)   clonal culture.
D)   meristem culture.
E)   genetic engineering.F) A) and D)
G) A) and E)

Question 16

Which plant hormone is responsible for breaking the dormancy cycle in plants?

Accepted Answer

A)   gibberellins
B)   auxins
C)   abscisic acid
D)   ethylene
E)   cytokininsF) B) and C)
G) B) and E)

Question 17

A farmer wishes to force a normal plant to maintain a dwarf size. Which of the following plant hormones might she apply?

Accepted Answer

A)   auxin
B)   cytokinin
C)   ethylene
D)   abscisic acid
E)   gibberellinsF) A) and B)
G) A) and C)

Question 18

Flowering in most plants is triggered by

Accepted Answer

A)   auxin migration.
B)   night length.
C)   day length.
D)   gibberellin production.
E)   negative phototropism.F) A) and E)
G) A) and B)

Question 19

The application of abscisic acid to a plant may prevent fruit maturation.

Accepted Answer

A) True 
 B)False

Question 20

A nursery wishes to produce a large number of carrot plants for sale in the spring. The nursery will most likely use which technique?

Accepted Answer

A)   tissue culture
B)   hybridization
C)   cuttings
D)   anther culture
E)   meristem cultureF) A) and B)
G) C) and D)

Exam 21: Plant Structure and Function

Plant hormones

Correct AnswerverifiedShow Answer

Which of the following is not an effect of gibberellins?

Correct AnswerverifiedShow Answer

Plant growth in response to an environmental stimulus is called

Correct AnswerverifiedShow Answer

Because tomatoes contain seeds they are classified as a(n)

Correct AnswerverifiedShow Answer

Production of cloned plants by using pollen is called

Correct AnswerverifiedShow Answer

Flowering in most plants is triggered by

Correct AnswerverifiedShow Answer

In order for senescence to be prevented, which hormone needs to be present in the plant?

Correct AnswerverifiedShow Answer

A farmer wishes to force a normal plant to maintain a dwarf size. Which of the following plant hormones might she apply?

Correct AnswerverifiedShow Answer

Short day/long night plants

Correct AnswerverifiedShow Answer

Cytokinins may help promote the growth of new plants in tissue culture.

Correct AnswerverifiedShow Answer

Long day/short night plants bloom when the night length is greater than a critical length.

Correct AnswerverifiedShow Answer

The aging process in plants is known as _______.

Correct AnswerverifiedShow Answer

Which of the following structures may be missing in a bisexual flower?

Correct AnswerverifiedShow Answer

Plants are naturally able to reproduce asexually because they contain meristematic tissue.

Correct AnswerverifiedShow Answer

A root growing into the Earth is exhibiting negative gravitropism.

Correct AnswerverifiedShow Answer

Monocot seeds differ from eudicot seeds because in monocot seeds,

Correct AnswerverifiedShow Answer

The application of abscisic acid to a plant may prevent fruit maturation.

Correct AnswerverifiedShow Answer

An advantage of using genetically modified plants is that they

Correct AnswerverifiedShow Answer

Which plant hormone is responsible for breaking the dormancy cycle in plants?

Correct AnswerverifiedShow Answer

A nursery wishes to produce a large number of carrot plants for sale in the spring. The nursery will most likely use which technique?

Correct AnswerverifiedShow Answer

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