Question 1

Which of the following is the correct sequence in the life cycle of a flowering plant?

Accepted Answer

A)  Sporophyte, meiosis, gametes, gametophyte, spores, fertilisation, zygote. 
B)  Sporophyte, spores, meiosis, gametophyte, gametes, zygote, mitosis. 
C)  Gametophyte, meiosis, fertilisation, sporophyte, mitosis, spores. 
D)  Gametophyte, mitosis, gametes, zygote, sporophyte, meiosis, spores. 
E)  Gametophyte, meiosis, gametes, fertilisation, zygote, sporophyte, spores. 
A)  Sporophyte, meiosis, gametes, gametophyte, spores, fertilisation, zygote. 
B)  Sporophyte, spores, meiosis, gametophyte, gametes, zygote, mitosis. 
C)  Gametophyte, meiosis, fertilisation, sporophyte, mitosis, spores. 
D)  Gametophyte, mitosis, gametes, zygote, sporophyte, meiosis, spores. 
E)  Gametophyte, meiosis, gametes, fertilisation, zygote, sporophyte, spores.

Question 2

In most species of flowering plants, the generative nucleus divides to form sperm nuclei

Accepted Answer

A)  as the pollen grain matures within the anther. 
B)  as the pollen grain germinates on the stigma. 
C)  after meiosis in the microsporocytes. 
D)  within the tip of the growing pollen tube. 
E)  in one degenerated synergid cell of the embryo immediately prior to fertilisation. 
A)  as the pollen grain matures within the anther. 
B)  as the pollen grain germinates on the stigma. 
C)  after meiosis in the microsporocytes. 
D)  within the tip of the growing pollen tube. 
E)  in one degenerated synergid cell of the embryo immediately prior to fertilisation.

Question 3

The flowers of Acacia retinodes are grouped in heads of about twenty flowers. When each flower bud opens the pistil protrudes above the unopened anthers, but within about 24 hours the style and stigma have dried out and the anthers have opened. Flower development within a single flower head is not usually synchronised. Acacia retinodes plants are

Accepted Answer

A)  monoecious. 
B)  dioecious. 
C)  protandrous. 
D)  bisexual. 
E)  protogynous. 
A)  monoecious. 
B)  dioecious. 
C)  protandrous. 
D)  bisexual. 
E)  protogynous.

Question 4

In the anthers of flowering plants

Accepted Answer

A)  microsporocytes divide by meiosis to form microspores. 
B)  microgametophytes divide by meiosis to form gametes. 
C)  microsporocytes divide by mitosis to form microgametophytes. 
D)  microspores divide by mitosis to form gametes. 
E)  microsporosites divide by mitosis to form gametes. 
A)  microsporocytes divide by meiosis to form microspores. 
B)  microgametophytes divide by meiosis to form gametes. 
C)  microsporocytes divide by mitosis to form microgametophytes. 
D)  microspores divide by mitosis to form gametes. 
E)  microsporosites divide by mitosis to form gametes.

Question 5

In asexual reproduction, new plants arise from a single parent by

Accepted Answer

A)  mitotic division of a diploid megaspore to form an embryo which then develops into a seed. 
B)  the production of stolons, long stems that grow along the surface of the soil and produces leaves and roots. 
C)  production of rhizomes. 
D)  budding. 
E)  All of the answers are means for asexual reproduction in flowering plants. 
A)  mitotic division of a diploid megaspore to form an embryo which then develops into a seed. 
B)  the production of stolons, long stems that grow along the surface of the soil and produces leaves and roots. 
C)  production of rhizomes. 
D)  budding. 
E)  All of the answers are means for asexual reproduction in flowering plants.

Exam 16: Reproduction, Growth and Development of Flowering Plants

Which of the following is the correct sequence in the life cycle of a flowering plant?

In most species of flowering plants, the generative nucleus divides to form sperm nuclei

In the anthers of flowering plants

In asexual reproduction, new plants arise from a single parent by

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