Question 1

How many nuclei are present inside a pollen grain?

Accepted Answer

A)  none 
B)  one 
C)  two 
D)  three 
E)  four 
A)  none 
B)  one 
C)  two 
D)  three 
E)  four

Question 2

List the features that enable us to distinguish the difference between a simple fruit and a compound fruit.

Accepted Answer

A simple fruit is derived from

Question 3

A sperm nucleus combines with one polar nucleus to form the endosperm.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is the correct sequence for the germination of the eudicot seed?

Accepted Answer

A)  The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges, from the soil it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots. 
B)  The cotyledon was absorbed by the endosperm and supplies the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots. 
C)  The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The radicle becomes part of the stem and the hypocotyl develops into the roots. 
D)  The pericarp has absorbed the endosperm and supplies the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots. 
E)  The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The plumule and the radicle push through the coleorhiza during germination. 
A)  The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges, from the soil it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots. 
B)  The cotyledon was absorbed by the endosperm and supplies the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots. 
C)  The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The radicle becomes part of the stem and the hypocotyl develops into the roots. 
D)  The pericarp has absorbed the endosperm and supplies the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The hypocotyl becomes part of the stem and the radicle develops into the roots. 
E)  The two cotyledons have absorbed the endosperm and supply the nutrients to the embryo. As the embryo emerges from the soil, it consumes the nutrients and develops the shoot. The plumule and the radicle push through the coleorhiza during germination.

Question 5

You are examining a seed with tiny white plumes attached to it. How is this type of seed most likely dispersed?

Accepted Answer

A)  by animals who eat it 
B)  by floating on water 
C)  by the wind 
D)  by attaching to the fur of animals 
E)  by bursting forth from the seed pod 
A)  by animals who eat it 
B)  by floating on water 
C)  by the wind 
D)  by attaching to the fur of animals 
E)  by bursting forth from the seed pod

Question 6

From the discussion of long-day and short-day plants, it is obvious that "day-neutral" plants

Accepted Answer

A)  flower when the night is shorter than a critical length. 
B)  flower when the night is longer than a critical length. 
C)  are not dependent on the length of the night or day for flowering. 
D)  have short stems or long stems, depending on the photoperiod. 
E)  have flowers that only open during the daytime. 
A)  flower when the night is shorter than a critical length. 
B)  flower when the night is longer than a critical length. 
C)  are not dependent on the length of the night or day for flowering. 
D)  have short stems or long stems, depending on the photoperiod. 
E)  have flowers that only open during the daytime.

Question 7

Peas and beans are considered legumes. Why?

Accepted Answer

A)  A legume is a fruit that splits along two sides when mature. 
B)  They are both simple fruits. 
C)  The actual seed is inside the pod. 
D)  Both are green when ripe. 
E)  Both develop relationships with nitrogen-fixing bacteria. 
A)  A legume is a fruit that splits along two sides when mature. 
B)  They are both simple fruits. 
C)  The actual seed is inside the pod. 
D)  Both are green when ripe. 
E)  Both develop relationships with nitrogen-fixing bacteria.

Question 8

A corn kernel is classified as a seed.

Accepted Answer

A) True 
 B)False

Question 9

Clover is an example of a what type of flowering plant?

Accepted Answer

A)  long-day 
B)  short-day 
C)  day-neutral 
D)  intermediate-day 
E)  nonflowering 
A)  long-day 
B)  short-day 
C)  day-neutral 
D)  intermediate-day 
E)  nonflowering

Question 10

What part of the flower attracts pollinators?

Accepted Answer

A)  petals 
B)  sepals 
C)  carpels 
D)  stamens 
E)  ovaries 
A)  petals 
B)  sepals 
C)  carpels 
D)  stamens 
E)  ovaries

Question 11

The response of plants to the relative length of light and darkness is termed

Accepted Answer

A)  phototropism. 
B)  photosynthesis. 
C)  photoperiodism. 
D)  translocation. 
E)  transpiration. 
A)  phototropism. 
B)  photosynthesis. 
C)  photoperiodism. 
D)  translocation. 
E)  transpiration.

Question 12

What flower mechanism would help prevent pollination by a foreign plant species?

Accepted Answer

A)  A pollen tube only grows inside the style of its own species. 
B)  The stigma is sticky mainly to its own species of pollen. 
C)  The timing of flowering keeps pollinators moving among a limited number of species. 
D)  Flowers attract a small number of specialized pollinators and, therefore, pollen is not spread equally to all available species of flowers. 
E)  All of the answer choices help prevent pollination by a foreign species. 
A)  A pollen tube only grows inside the style of its own species. 
B)  The stigma is sticky mainly to its own species of pollen. 
C)  The timing of flowering keeps pollinators moving among a limited number of species. 
D)  Flowers attract a small number of specialized pollinators and, therefore, pollen is not spread equally to all available species of flowers. 
E)  All of the answer choices help prevent pollination by a foreign species.

Question 13

A friend complains that all of her houseplants have bent stems. You examine the plants and find that their stems all curve toward the light. What would you recommend to your friend to correct the problem?

Accepted Answer

A)  Apply an auxin to the shady side of the stems. 
B)  Water the plants more frequently. 
C)  Apply gibberellins to the bases of the stems. 
D)  Turn each plant occasionally. 
E)  Repot the plants. 
A)  Apply an auxin to the shady side of the stems. 
B)  Water the plants more frequently. 
C)  Apply gibberellins to the bases of the stems. 
D)  Turn each plant occasionally. 
E)  Repot the plants.

Exam 10: Plant Reproduction and Responses

How many nuclei are present inside a pollen grain?

List the features that enable us to distinguish the difference between a simple fruit and a compound fruit.

A sperm nucleus combines with one polar nucleus to form the endosperm.

Which of the following is the correct sequence for the germination of the eudicot seed?

You are examining a seed with tiny white plumes attached to it. How is this type of seed most likely dispersed?

From the discussion of long-day and short-day plants, it is obvious that "day-neutral" plants

Peas and beans are considered legumes. Why?

A corn kernel is classified as a seed.

Clover is an example of a what type of flowering plant?

What part of the flower attracts pollinators?

The response of plants to the relative length of light and darkness is termed

What flower mechanism would help prevent pollination by a foreign plant species?

A friend complains that all of her houseplants have bent stems. You examine the plants and find that their stems all curve toward the light. What would you recommend to your friend to correct the problem?

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