Chapter 24:
Reproduction in Plants
Practice Test
1.
A flower that lacks one or more organs is called a(n) __________.
a.
short-day plant
b.
incomplete flower
c.
complete flower
d.
long-day plant
Hint
2.
Double fertilization means that __________.
a.
two sperm nuclei fertilize one egg cell
b.
one sperm nucleus fertilizes the egg cell, and the other fertilizes the diploid cell that will become the endosperm
c.
one sperm nucleus becomes two prior to fertilization
d.
one sperm nucleus fertilizes two egg cells
Hint
3.
The base of the pistil is the __________.
a.
style
b.
ovary
c.
stamen
d.
sepal
Hint
4.
The generative cell of a pollen grain divides and produces __________.
a.
diploid sperm cells
b.
haploid megaspores
c.
diploid megaspores
d.
haploid sperm cells
Hint
5.
If a stigma receives pollen from another flower of the same species, the flower is __________.
a.
an incomplete flower
b.
cross-pollinated
c.
self-pollinated
d.
a complete flower
Hint
6.
During pollination, pollen grains are transferred from the anther to the __________.
a.
stamen
b.
pistil
c.
ovary
d.
sepal
Hint
7.
The food storage tissue that supports development of the embryo is called the __________.
a.
kernel
b.
grain
c.
fruit
d.
endosperm
Hint
8.
The gametophyte of a fern is a __________.
a.
protonema
b.
pistil
c.
rhizome
d.
prothallus
Hint
9.
The gametophyte generation is the dominant generation in which of the following?
a.
roses
b.
mosses
c.
ferns
d.
conifers
Hint
10.
When a butterfly drinks from a flower, it brushes against the anthers and gets covered with pollen. When the butterfly visits another flower, the pollen attaches to the __________, resulting in pollination.
a.
sepals
b.
stigma
c.
anther
d.
petal
Hint
11.
Before fertilization, the two sperm nuclei move through the pollen tubes into the ovule through the __________.
a.
micropyle
b.
fruit
c.
endosperm
d.
stigma
Hint
12.
The seeds of a conifer are produced by the __________.
a.
needles
b.
cones
c.
flowers
d.
pollen grains
Hint
13.
Nectar-feeding pollinators are attracted to a flower by its color or _____.
a.
scent
b.
sepals
c.
pollen
d.
stigma
Hint
14.
Pollen is produced by the __________.
a.
anther
b.
ovary
c.
style
d.
stigma
Hint
15.
Moths feed on flowers that are open at night. These flowers are usually __________.
a.
scented like rotting meat
b.
pale in color and sweetly scented
c.
brightly colored and unscented
d.
dull in color with no nectar but a strong scent
Hint
