AnswersAFC Biology B S3The Life Cycles of Plants

The Life Cycles of Plants Answers

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3

What is a flowering seed plant called?

A
angiosperm
B
gymnosperm
C
fern
D
moss
6

What do the moss life cycle and the fern life cycle have in common?

A
Double fertilization produces a 3n cell.
B
Seeds are protected and nourished by a fruit.
C
The zygote is the first cell of the gametophyte phase.
D
Fertilization produces a diploid cell.
7

What occurs in the life cycle of a moss but not in the life cycle of a gymnosperm?

A
In moss, sperm and egg cells are produced after haploid spores are released from the sporophyte.
B
In moss, sperm and egg cells grow in cones that are attached to the sporophyte plant.
C
In moss, sporophyte and gametophyte generations alternate.
D
In moss, when two haploid cells fuse, they form a diploid zygote that begins the sporophyte generation.
8

Which best describes the alternation of generations?

A
Fertilization produces haploid spores.
B
Meiosis produces a diploid zygote.
C
A gametophyte is its diploid phase.
D
A gametophyte is its haploid phase.
9

Which field is associated with studying plants?

A
zoology
B
bacteriology
C
botany
D
pathology
12

What do all plant life cycles have in common?

A
Fertilization produces seeds.
B
Sperm cells are carried by the wind to egg cells.
C
Diploid and haploid phases alternate.
D
Sporophytes are formed by meiosis.
14

Which topic is most likely to be studied by a botanist?

A
insect metamorphosis
B
viral replication
C
plant growth
D
animal physiology
15

In seedless plants, haploid gametophytes are produced from

A
diploid spores that undergo mitosis.
B
haploid spores that undergo meiosis.
C
diploid spores that undergo meiosis.
D
haploid spores that undergo mitosis.

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