Question 1

The process involving microspore division and a tough wall to protect the gametophyte leads to the production of what end product?

Accepted Answer

A)  Eggs
B)  Ovules
C)  Pollen
D)  Anthers
E)  StamensF) None of the above
G) A) and B)

Question 2

Capsaicin is a compound in chili peppers that produces a burning sensation in mammalian tissues.In mammals,capsaicin binds to the TRPV1 transmembrane channel.Interestingly,the TRPV1 channel in birds does not respond to capsaicin.What implications could this have for chili pepper plants?

Accepted Answer

A)  Birds will avoid eating chili peppers.
B)  Chili pepper seeds cannot be dispersed.
C)  Mammals are likely responsible for the dispersal of chili pepper seeds.
D)  Birds are likely responsible for the dispersal of chili pepper seeds.E) B) and C)
F) A) and D)

Question 3

It is possible for a plant to have flowers that are both incomplete and perfect.

Accepted Answer

A) True 
 B)False

Question 4

A flower could best be described as which of the following?

Accepted Answer

A)  Modified leaves
B)  Modified petals
C)  Modified stems
D)  Primary buds
E)  Incomplete leavesF) C) and D)
G) A) and D)

Question 5

The pistil of a flower is best described as:

Accepted Answer

A)  a structure to defend against insects.
B)  a single carpel or group of fused carpels.
C)  a place where pollen is produced.
D)  a grouping of filaments.
E)  a place for sperm to be produced.F) A) and B)
G) A) and C)

Question 6

A basic difference between self-pollination and cross-pollination is:

Accepted Answer

A)  the method of pollen delivery.
B)  whether insects are involved in pollination.
C)  where the pollen came from.
D)  whether the pollen germinateD.
E)  how often pollination occurs.F) B) and C)
G) D) and E)

Question 7

Plants that are pollinated by insects probably do NOT produce allergy reaction in humans.

Accepted Answer

A) True 
 B)False

Question 8

Arabidopsis plants with a mutation in the flp1 gene produce pollen grains that have a smooth surface and are easily damaged.Disruption of what process likely causes this phenotype?

Accepted Answer

A)  Sporopollenin deposition
B)  Tube cell formation
C)  Pollen germination
D)  Double fertilizationE) A) and C)
F) C) and D)

Question 9

One important aspect of self-incompatibility is to prevent:

Accepted Answer

A)  expression of deleterious homozygous recessive genes.
B)  genes that may prevent pollen germination.
C)  factors that keep pollen from developing.
D)  matings between different species of plants.
E)  adherence of pollen to the stigma surfacE.F) A) and B)
G) A) and C) A

Question 10

Which of the following is NOT a characteristic of the gametophyte stage of the flowering plant?

Accepted Answer

A)  Haploid
B)  Diploid
C)  Gamete producing
D)  Dependent on the sporophyteE) B) and D)
F) B) and C)

Question 11

In grass seeds,the ________ secretes digestive enzymes into the central endosperm to release sugars from stored starch.

Accepted Answer

A)  cotyledon.
B)  coleorhiza.
C)  aleurone.
D)  radicle.E) A) and C)
F) B) and C)

Question 12

Double fertilization is important to the reproductive process because it produces:

Accepted Answer

A)  both the zygote and the endosperm.
B)  a reaction that keeps the plant from dying.
C)  a double portion of endosperm.
D)  nutrition for the seeD.
E)  None of these is truE.F) All of the above
G) C) and E)

Question 13

Which of the following events must occur before fertilization can happen?

Accepted Answer

A)  Double meiosis
B)  Mitosis
C)  Haploidization
D)  Pollination
E)  CarpellizationF) A) and E)
G) A) and D)

Question 14

Plants with mutant ABA receptors are likely to have problems with:

Accepted Answer

A)  seed dormancy.
B)  endosperm formation.
C)  pollen tube formation.
D)  fertilization.E) A) and B)
F) A) and C) A

Question 15

Which one of the following is not a variation of flowers frequently considered in investigations of flowers and their functions?

Accepted Answer

A)  Fragrance
B)  Color
C)  Shape
D)  Number of parts
E)  Preferred soil conditionsF) B) and D)
G) A) and B)

Question 16

You are working with a scientist to classify new plants.You find a new plant that has flowers.You can conclude what about its reproduction?

Accepted Answer

A)  It reproduces sexually.
B)  It reproduces by apomixis.
C)  It reproduces by somatic embryogenesis.
D)  We do not have sufficient information about this plant to indicate how it reproduces.E) A) and B)
F) A) and C)

Question 17

Male gametophytes are produced by which of the following processes?

Accepted Answer

A)  Meiosis
B)  Mitosis
C)  Neither mitosis nor meiosis
D)  Gametogenesis
E)  Microsporophyte generationF) A) and D)
G) None of the above

Question 18

Which one of the following is true of the sporophyte stage of a flowering plant?

Accepted Answer

A)  It is haploid.
B)  It is a nonphotosynthetic stage.
C)  It is the obvious stage,for example an oak tree.
D)  It is dependent on the gametophyte for nutrition.E) B) and D)
F) A) and D)

Question 19

In some plants a fruit is composed of the ovary and other plant parts.

Accepted Answer

A) True 
 B)False

Question 20

Seeds for desert plants often germinate once abscisic acid is washed away from the seed by water.In this scenario,abscisic acid is acting as a/an:

Accepted Answer

A)  hormone that stimulates cell expansion.
B)  germination-inhibiting compound.
C)  suspensor.
D)  hormone to induce the release of sugars from stored starch in the endosperm.E) C) and D)
F) A) and B) B

Exam 30: Flowering Plants: Reproduction

The process involving microspore division and a tough wall to protect the gametophyte leads to the production of what end product?

Correct AnswerverifiedShow Answer

Capsaicin is a compound in chili peppers that produces a burning sensation in mammalian tissues.In mammals,capsaicin binds to the TRPV1 transmembrane channel.Interestingly,the TRPV1 channel in birds does not respond to capsaicin.What implications could this have for chili pepper plants?

Correct AnswerverifiedShow Answer

It is possible for a plant to have flowers that are both incomplete and perfect.

Correct AnswerverifiedShow Answer

A flower could best be described as which of the following?

Correct AnswerverifiedShow Answer

The pistil of a flower is best described as:

Correct AnswerverifiedShow Answer

A basic difference between self-pollination and cross-pollination is:

Correct AnswerverifiedShow Answer

Plants that are pollinated by insects probably do NOT produce allergy reaction in humans.

Correct AnswerverifiedShow Answer

Arabidopsis plants with a mutation in the flp1 gene produce pollen grains that have a smooth surface and are easily damaged.Disruption of what process likely causes this phenotype?

Correct AnswerverifiedShow Answer

One important aspect of self-incompatibility is to prevent:

Correct AnswerverifiedA

Which of the following is NOT a characteristic of the gametophyte stage of the flowering plant?

Correct AnswerverifiedShow Answer

In grass seeds,the ________ secretes digestive enzymes into the central endosperm to release sugars from stored starch.

Correct AnswerverifiedShow Answer

Double fertilization is important to the reproductive process because it produces:

Correct AnswerverifiedShow Answer

Which of the following events must occur before fertilization can happen?

Correct AnswerverifiedShow Answer

Plants with mutant ABA receptors are likely to have problems with:

Correct AnswerverifiedA

Which one of the following is not a variation of flowers frequently considered in investigations of flowers and their functions?

Correct AnswerverifiedShow Answer

You are working with a scientist to classify new plants.You find a new plant that has flowers.You can conclude what about its reproduction?

Correct AnswerverifiedShow Answer

Male gametophytes are produced by which of the following processes?

Correct AnswerverifiedShow Answer

Which one of the following is true of the sporophyte stage of a flowering plant?

Correct AnswerverifiedShow Answer

In some plants a fruit is composed of the ovary and other plant parts.

Correct AnswerverifiedShow Answer

Seeds for desert plants often germinate once abscisic acid is washed away from the seed by water.In this scenario,abscisic acid is acting as a/an:

Correct AnswerverifiedB

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A

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B