Question 1

Jasmonic acid is a plant hormone that activates a plant's defenses against predators.

Accepted Answer

A) True 
 B)False

Question 2

A biochemical synthesized in small quantities in one part of an organism and transported to another,where a target cell is affected is a(an) :

Accepted Answer

A)  Enzyme
B)  Callus
C)  Spore
D)  Hormone
E)  ScionF) B) and E)
G) None of the above

Question 3

A farmer might use gibberellins to stimulate stem elongation in plants,thereby increasing the crop yield in some plants.

Accepted Answer

A) True 
 B)False

Question 4

Double fertilization reduces the energetic cost of reproduction.In gymnosperms,the female gametophyte stockpiles food for the embryo in advance of fertilization.The investment is wasted if no zygote ever forms.In contrast,double fertilization ensures that an angiosperm devotes energy to the zygote only if sperm fertilizes egg.What do the sperm fertilize in a double fertilization?

Accepted Answer

A)  The egg
B)  Two polar nuclei
C)  The egg and two polar nuclei
D)  The egg and zygote
E)  The zygoteF) A) and C)
G) B) and C)

Question 5

What is the normal function of fruits?

Accepted Answer

A)  To protect seeds
B)  To disperse seeds
C)  To attract pollinators
D)  To protect and disperse seeds
E)  To attract pollinators and protect seedsF) A) and E)
G) None of the above

Question 6

The whorl of a flower that consists of the male reproductive parts is the:

Accepted Answer

A)  Stamen
B)  Calyx
C)  Stigma
D)  Carpel
E)  CorollaF) D) and E)
G) A) and E)

Question 7

The type of fruit that is derived from one flower with many separate carpels is a _____________ fruit.

Accepted Answer

A)  Simple
B)  Aggregate
C)  Double
D)  Axillary
E)  MultipleF) All of the above
G) A) and E)

Question 8

Double fertilization reduces the energetic cost of reproduction.In gymnosperms,the female gametophyte stockpiles food for the embryo in advance of fertilization.The investment is wasted if no zygote ever forms.In contrast,double fertilization ensures that an angiosperm devotes energy to the zygote only if sperm fertilizes egg.Where is this energy stored in a fertilized angiosperm?

Accepted Answer

A)  Endosperm
B)  Stigma
C)  Zygote
D)  Pollen
E)  EggF) B) and D)
G) A) and C)

Question 9

Coconuts are fruits containing seeds that are usually wind dispersed.

Accepted Answer

A) True 
 B)False

Question 10

One way to get fruit to ripen more quickly is to place it in a paper bag with other ripe fruit.Which of the following best explains this observation?

Accepted Answer

A)  Ripe fruit release ethylene gas
B)  Ripe fruit break down auxins
C)  The lack of oxygen promotes photosynthesis which ripens the fruit
D)  Ripe fruit carry fungi that attack other fruit
E)  When fruit is in the dark it thinks it is underground and begins to germinateF) All of the above
G) None of the above

Question 11

Which animals were most likely to eat the hot peppers?

Accepted Answer

A)  Cactus mice
B)  Pack rats
C)  Thrashers
D)  Cactus mice and pack rats
E)  Thrashers, cactus mice, and pack rats all ate the peppers equallyF) B) and E)
G) All of the above

Question 12

Where are floral megaspores located?

Accepted Answer

A)  Anther
B)  Ovule
C)  Corolla
D)  Sepal
E)  StigmaF) A) and B)
G) C) and D)

Question 13

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is:

Accepted Answer

A)  Abscisic acid
B)  Cytokinins
C)  Gibberellins
D)  Jasmonic acid
E)  EthyleneF) D) and E)
G) C) and D)

Question 14

A thrasher getting food from a pepper and at the same time dispersing seeds is an example of which of the following?

Accepted Answer

A)  Predation
B)  Commensalism
C)  Parasitism
D)  Competition
E)  MutualismF) A) and E)
G) A) and C)

Question 15

In all major groups of multicellular organisms _______________ produces the cells that begin the haploid generation,and _________________ unites the gametes to begin the diploid generation.

Accepted Answer

A)  Mitosis, pollination
B)  Meiosis, fertilization
C)  Pollination, fertilization
D)  Fertilization, meiosis
E)  Fertilization, mitosisF) A) and E)
G) B) and D)

Question 16

Seedless watermelons come from seeds that are triploid and therefore do not develop properly and are simply soft hulls that are easy to chew.

Accepted Answer

A) True 
 B)False

Question 17

Cytokinins are plant hormones that stimulate the ripening of fruit.

Accepted Answer

A) True 
 B)False

Question 18

A sweet substance used by many angiosperms to lure pollinators is:

Accepted Answer

A)  Pollen
B)  Honey
C)  "Honey Dew"
D)  Phloem sap
E)  NectarF) B) and C)
G) B) and E)

Question 19

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

Accepted Answer

A)  The roots and shoots respond oppositely to auxin
B)  Statoliths move in the opposite direction in roots and shoots
C)  The absorption of light by phytochromes only occurs in shoots
D)  The circadian rhythms of roots and shoots are opposite
E)  Through differences in thigmotropismF) C) and D)
G) B) and D)

Question 20

Pollination is the transfer of pollen from a(an) _______________ to a receptive ________________.

Accepted Answer

A)  Ovary, stigma
B)  Stigma, ovary
C)  Stigma, anther
D)  Anther, stigma
E)  None of these are correctF) D) and E)
G) All of the above

Exam 23: Reproduction and Development of Flowering Plants

Where are floral megaspores located?

Correct Answer
verified

Which animals were most likely to eat the hot peppers?

Correct Answer
verified

One way to get fruit to ripen more quickly is to place it in a paper bag with other ripe fruit.Which of the following best explains this observation?

Correct Answer
verified

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is:

Correct Answer
verified

Pollination is the transfer of pollen from a(an) _ to a receptive __.

Correct Answer
verified

What is the normal function of fruits?

Correct Answer
verified

Seedless watermelons come from seeds that are triploid and therefore do not develop properly and are simply soft hulls that are easy to chew.

Correct Answer
verified

The type of fruit that is derived from one flower with many separate carpels is a _____________ fruit.

Correct Answer
verified

A farmer might use gibberellins to stimulate stem elongation in plants,thereby increasing the crop yield in some plants.

Correct Answer
verified

Correct Answer
verified

A biochemical synthesized in small quantities in one part of an organism and transported to another,where a target cell is affected is a(an) :

Correct Answer
verified

A thrasher getting food from a pepper and at the same time dispersing seeds is an example of which of the following?

Correct Answer
verified

The whorl of a flower that consists of the male reproductive parts is the:

Correct Answer
verified

Correct Answer
verified

Coconuts are fruits containing seeds that are usually wind dispersed.

Correct Answer
verified

A sweet substance used by many angiosperms to lure pollinators is:

Correct Answer
verified

Jasmonic acid is a plant hormone that activates a plant's defenses against predators.

Correct Answer
verified

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

Correct Answer
verified

In all major groups of multicellular organisms _ produces the cells that begin the haploid generation,and ___ unites the gametes to begin the diploid generation.

Correct Answer
verified

Cytokinins are plant hormones that stimulate the ripening of fruit.

Correct Answer
verified

Exam 23: Reproduction and Development of Flowering Plants

Where are floral megaspores located?

Correct AnswerverifiedShow Answer

Which animals were most likely to eat the hot peppers?

Correct AnswerverifiedShow Answer

One way to get fruit to ripen more quickly is to place it in a paper bag with other ripe fruit.Which of the following best explains this observation?

Correct AnswerverifiedShow Answer

The plant hormone that triggers the withering of petals and stamens and promotes fruit ripening is:

Correct AnswerverifiedShow Answer

Pollination is the transfer of pollen from a(an) _______________ to a receptive ________________.

Correct AnswerverifiedShow Answer

What is the normal function of fruits?

Correct AnswerverifiedShow Answer

Seedless watermelons come from seeds that are triploid and therefore do not develop properly and are simply soft hulls that are easy to chew.

Correct AnswerverifiedShow Answer

The type of fruit that is derived from one flower with many separate carpels is a _____________ fruit.

Correct AnswerverifiedShow Answer

A farmer might use gibberellins to stimulate stem elongation in plants,thereby increasing the crop yield in some plants.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A biochemical synthesized in small quantities in one part of an organism and transported to another,where a target cell is affected is a(an) :

Correct AnswerverifiedShow Answer

A thrasher getting food from a pepper and at the same time dispersing seeds is an example of which of the following?

Correct AnswerverifiedShow Answer

The whorl of a flower that consists of the male reproductive parts is the:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Coconuts are fruits containing seeds that are usually wind dispersed.

Correct AnswerverifiedShow Answer

A sweet substance used by many angiosperms to lure pollinators is:

Correct AnswerverifiedShow Answer

Jasmonic acid is a plant hormone that activates a plant's defenses against predators.

Correct AnswerverifiedShow Answer

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots grow in opposite directions as the plant is rotated?

Correct AnswerverifiedShow Answer

In all major groups of multicellular organisms _______________ produces the cells that begin the haploid generation,and _________________ unites the gametes to begin the diploid generation.

Correct AnswerverifiedShow Answer

Cytokinins are plant hormones that stimulate the ripening of fruit.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Pollination is the transfer of pollen from a(an) _ to a receptive __.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In all major groups of multicellular organisms _ produces the cells that begin the haploid generation,and ___ unites the gametes to begin the diploid generation.

Correct Answer
verified

Correct Answer
verified