Three mitotic divisions within the female gametophyte of the megaspore produce

Three mitotic divisions within the female gametophyte of the megaspore produce 

A) three antipodal cells, two polar nuclei, one egg, and two synergids.
B) the triple fusion nucleus.
C) three pollen grains.
D) two antipodal cells, two polar nuclei, two eggs, and two synergids.
E) a tube nucleus, a generative cell, and a sperm cell.






Answer: A

In flowering plants, a mature male gametophyte contains

In flowering plants, a mature male gametophyte contains 

A) two haploid gametes and a diploid pollen grain.
B) a generative cell and a tube cell.
C) two sperm nuclei and one tube cell nucleus.
D) two haploid microspores.
E) a haploid nucleus and a diploid pollen wall.






Answer: C

Which of the following would be considered a multiple fruit?

Which of the following would be considered a multiple fruit? 

A) apple
B) strawberry
C) raspberry
D) pineapple
E) corn on the cob






Answer: D

Which of the following is the male gametophyte of a flowering plant?

Which of the following is the male gametophyte of a flowering plant? 

A) ovule
B) microsporocyte
C) pollen grain
D) embryo sac
E) stamen







Answer: C

In which of the following pairs are the two terms equivalent?

In which of the following pairs are the two terms equivalent? 

A) ovule?egg
B) embryo sac?female gametophyte
C) endosperm?male gametophyte
D) seed?zygote
E) microspore?pollen grain






Answer: B

Where and by which process are sperm cells formed in plants?

Where and by which process are sperm cells formed in plants? 

A) meiosis in pollen grains
B) meiosis in anthers
C) mitosis in male gametophyte pollen tube
D) mitosis in the micropyle
E) mitosis in the embryo sac






Answer: C

Which of the following occurs in an angiosperm ovule?

Which of the following occurs in an angiosperm ovule? 

A) An antheridium forms from the megasporophyte.
B) A megaspore mother cell undergoes meiosis.
C) The egg nucleus is usually diploid.
D) A pollen tube emerges to accept pollen after pollination.
E) The endosperm surrounds the megaspore mother cell.





Answer: B

Which of the following is the correct sequence of events in a pollen sac?

Which of the following is the correct sequence of events in a pollen sac? 

A) sporangia ? meiosis ? two haploid cells ? meiosis ? two pollen grains per cell
B) pollen grain ? meiosis ? two generative cells ? two tube cells per pollen grain
C) two haploid cells ? meiosis ? generative cell ? tube cell-fertilization ? pollen grain
D) pollen grain ? mitosis ? microspores ? meiosis ? generative cell plus tube cell
E) microsporocyte ? meiosis ? microspores ? mitosis ? two haploid cells per pollen grain








Answer: E

Which of the following is incorrectly paired with its life-cycle generation?

Which of the following is incorrectly paired with its life-cycle generation? 

A) anther?gametophyte
B) pollen?gametophyte
C) embryo sac?gametophyte
D) stamen?sporophyte
E) embryo?sporophyte







Answer: A

Which of the following is a correct sequence of processes that takes place when a flowering plant reproduces?

Which of the following is a correct sequence of processes that takes place when a flowering plant reproduces? 

A) meiosis ? fertilization ? ovulation ? germination
B) fertilization ? meiosis ? nuclear fusion ? formation of embryo and endosperm
C) meiosis ? pollination ? nuclear fusion ? formation of embryo and endosperm
D) growth of pollen tube ? pollination ? germination ? fertilization
E) meiosis ? mitosis ? nuclear fusion ? pollen






Answer: C

Where does meiosis occur in flowering plants?

Where does meiosis occur in flowering plants? 

A) megasporocyte
B) microsporocyte
C) endosperm
D) pollen tube
E) megasporocyte and microsporocyte







Answer: E

In the life cycle of an angiosperm, which of the following stages is diploid?

In the life cycle of an angiosperm, which of the following stages is diploid? 

A) megaspore
B) generative nucleus of a pollen grain
C) polar nuclei of the embryo sac
D) microsporocyte
E) both megaspore and polar nuclei







Answer: D

In flowering plants, pollen is released from the

In flowering plants, pollen is released from the 

A) anther.
B) stigma.
C) carpel.
D) filament.
E) pollen tube.






Answer: A

Which of the following types of plants are incapable of self-pollination?

Which of the following types of plants are incapable of self-pollination? 

A) dioecious
B) monoecious
C) complete
D) wind-pollinated
E) insect-pollinated







Answer: A

Which of the following statements regarding flowering plants is false?

Which of the following statements regarding flowering plants is false? 

A) The sporophyte is the dominant generation.
B) Female gametophytes develop from megaspores within the anthers.
C) Pollination is the placing of pollen on the stigma of a carpel.
D) The food-storing endosperm is derived from the cell that contains two polar nuclei and one sperm nucleus.
E) Flowers produce fruits within the ovules.








Answer: B

Carpellate flowers

Carpellate flowers 

A) are perfect.
B) are complete.
C) produce pollen.
D) are found only on dioecious plants.
E) develop into fruits.







Answer: E

A perfect flower is fertile, but may be either complete or incomplete. Which of the following correctly describes a perfect flower?

A perfect flower is fertile, but may be either complete or incomplete. Which of the following correctly describes a perfect flower? 

A) It has no sepals.
B) It has fused carpels.
C) It is on a dioecious plant.
D) It has no endosperm.
E) It has both stamens and carpels.






Answer: E

Meiosis occurs within all of the following flower parts except the

Meiosis occurs within all of the following flower parts except the 

A) ovule.
B) style.
C) megasporangium.
D) anther.
E) ovary.







Answer: B

All of the following are primary functions of flowers except

All of the following are primary functions of flowers except 

A) pollen production.
B) photosynthesis.
C) meiosis.
D) egg production.
E) sexual reproduction.








Answer: B

In some angiosperms, other floral parts contribute to what is commonly called the fruit. Which of the following fruits is derived mostly from an enlarged receptacle?

In some angiosperms, other floral parts contribute to what is commonly called the fruit. Which of the following fruits is derived mostly from an enlarged receptacle? 

A) pea
B) raspberry
C) apple
D) pineapple
E) peach







Answer: C