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CHAPTER 36—REPRODUCTION AND DEVELOPMENT IN FLOWERING
PLANTS
MULTIPLE CHOICE
1. Unlike most angiosperms, Theobroma cacao flowers are produced
a.
at the tips of floral shoots.
b.
from buds on the roots.
c.
from buds on the tree trunk.
d.
asexually.
e.
only on trees grown on plantations.
2. Flowering plants
a.
only reproduce asexually.
b.
produce clones through sexual reproduction, and under certain circumstances seeds
through asexual reproduction.
c.
reproduce asexually about half the time and sexually about half the time.
d.
only reproduce sexually.
e.
produce seeds through sexual reproduction, and under certain circumstances clones
through asexual reproduction.
3. After fertilization in flowering plants, an embryo in a seed
a.
begins as a gametophyte and ends up as a sporophyte before germination.
b.
is always a sporophyte.
c.
is usually a gametophyte but can be a sporophyte.
d.
begins as a sporophyte and ends up as a gametophyte before germination.
e.
is always a gametophyte.
4. Where in a flowering plant should you expect meiosis to occur?
a.
leaves
b.
roots and leaves
c.
flowers
d.
flowers, roots, and leaves
e.
roots
5. Unlike in animal meiosis, meiosis in plants gives rise to
a.
diploid spores.
b.
haploid spores.
c.
diploid gametes.
d.
haploid gametes.
e.
cells without walls.
6. Meiosis in flowering plants gives rise to cells that are
a.
haploid gametophytes.
b.
diploid sporophytes.
c.
sporophytes that can be haploid or diploid.
d.
diploid gametophytes.
e.
haploid sporophytes.
7. Which of the following are the male gametophytes in flowering plants?
a.
stamens
b.
sperm
c.
shoot parts bearing male flowers
d.
pollen grains
e.
anthers
8. The female gametophyte in flowering plants is usually consists of
a.
a complete pistil.
b.
seven cells embedded in floral tissues.
c.
a single ovary.
d.
a seed.
e.
shoot parts bearing female flowers.
9. In flowering plants
a.
the gametophytes are smaller than the sporophytes and do not nourish themselves.
b.
the gametophytes are smaller than the sporophytes but are free-living and nourish
themselves for most of their lives.
c.
the gametophytes are usually larger than the sporophytes, but both gametophytes and
sporophytes nourish themselves.
d.
the gametophytes are usually larger than the sporophytes, and the sporophytes grow out of
the gametophytes and are nourished by them.
e.
the gametophytes and sporophytes are roughly equal in size and each nourish themselves.
10. The end of a reproductive shoot where a flower develops is called the
a.
ovule.
b.
calyx.
c.
receptacle.
d.
filament.
e.
carpel.
11. The sepals of a flower make up the
a.
receptacle.
b.
corolla.
c.
carpel.
d.
calyx.
e.
filament.
12. The petals of a flower make up the
a.
corolla.
b.
filament.
c.
ovule.
d.
calyx.
e.
receptacle.
13. The female gametophyte in flowering plants forms in a
a.
calyx.
b.
carpel.
c.
receptacle.
d.
corolla.
e.
stamen.
14. The male gametophyte in flowering plants forms in a
a.
corolla.
b.
receptacle.
c.
stamen.
d.
calyx.
e.
carpel.
15. In a flower, an anther is typically at the tip of a(n)
a.
calyx.
b.
receptacle.
c.
carpel.
d.
filament.
e.
ovule.
16. In flowering plants an ovary is part of a(n)
a.
corolla.
b.
ovule.
c.
calyx.
d.
stamen.
e.
carpel.
17. The landing platform for pollen in flowering plants is the
a.
filament.
b.
stigma.
c.
anther.
d.
style.
e.
ovary.
18. A flower must have one or more ____ to be able to make seeds.
a.
stamens
b.
sepals
c.
carpels
d.
stamens and sepals
e.
stamens and carpels
Use the figure above for the following question(s).
19. In the flower diagram shown above, the item labeled "1" is the
a.
filament.
b.
sepal.
c.
receptacle.
d.
style.
e.
ovule.
20. In the flower diagram shown above, the item labeled "2" is a(n)
a.
sepal.
b.
anther.
c.
receptacle.
d.
petal.
e.
ovule.
21. In the flower diagram shown above, the item labeled "3" is a(n)
a.
anther.
b.
receptacle.
c.
style.
d.
stigma.
e.
filament.
22. In the flower diagram shown above, the item labeled "4" is a(n)
a.
stigma.
b.
anther.
c.
sepal.
d.
receptacle.
e.
ovule.
23. In the flower diagram shown above, the item labeled "5" is the
a.
receptacle.
b.
ovule.
c.
style.
d.
stigma.
e.
anther.
24. In the flower diagram shown above, the item labeled "6" is a(n)
a.
style.
b.
sepal.
c.
receptacle.
d.
ovule.
e.
petal.
25. In the flower diagram shown above, the item labeled "7" is the
a.
filament.
b.
stigma.
c.
ovule.
d.
style.
e.
anther.
26. In the flower diagram shown above, the item labeled "8" is a(n)
a.
ovule.
b.
stigma.
c.
sepal.
d.
anther.
e.
style.
27. The innermost whorl of a flower typically consists of one or more
a.
petals.
b.
carpels.
c.
stamens.
d.
receptacles.
e.
sepals.
28. Which part of a flower is typically the most leaflike, and when green can carry out photosynthesis?
a.
carpels
b.
receptacles
c.
sepals
d.
petals
e.
stamens
29. The parts of a flower most likely to have distinctive colors, patterning, and shapes for attracting
pollinators are the
a.
petals.
b.
carpels.
c.
stamens.
d.
receptacles.
e.
sepals.
30. The male reproductive whorl of a flower typically consists of one or more
a.
petals.
b.
carpels.
c.
stamens.
d.
receptacles.
e.
sepals.
31. The outermost whorl of a flower typically consists of one or more
a.
petals.
b.
carpels.
c.
stamens.
d.
receptacles.
e.
sepals.
32. The female reproductive whorl of a flower typically consists of one or more
a.
petals.
b.
carpels.
c.
stamens.
d.
receptacles.
e.
sepals.
33. A flower with carpels and stamens but no petals or sepals is
a.
perfect and incomplete.
b.
imperfect and complete.
c.
imperfect and incomplete.
d.
perfect and complete.
e.
sterile
34. A flower with petals, sepals, and one carpel but no stamens is
a.
perfect and incomplete.
b.
imperfect and complete.
c.
imperfect and incomplete.
d.
perfect and complete.
e.
sterile
35. A flower with petals, sepals, stamens, and one carpel is
a.
perfect and incomplete.
b.
imperfect and complete.
c.
imperfect and incomplete.
d.
perfect and complete.
e.
sterile
36. A plant species where each plant can only make either male or female flowers is called a ____ species
and always has ____ flowers.
a.
monoecious; complete
b.
dioecious; imperfect
c.
dioecious; complete
d.
monoecious; imperfect
e.
monoecious; perfect
37. A plant species where each plant makes some flowers that are male and some that are female is called
a ____ species and always has ____ flowers.
a.
monoecious; complete
b.
dioecious; imperfect
c.
dioecious; complete
d.
monoecious; imperfect
e.
monoecious; perfect
38. Which of the following occurs for the production of a pollen grain from a microspore mother cell?
a.
mitosis only
b.
mitosis, then meiosis
c.
mitosis, then meiosis, then mitosis
d.
meiosis only
e.
meiosis, then mitosis
39. Which of the following is the main reason why pollen withstands decay much better than typical plant
parts?
a.
hemicellulose
b.
sporopollenin
c.
lignin
d.
cellulose
e.
pectin
40. The female gametophyte in flowering plants is the
a.
ovary.
b.
seed.
c.
embryo sac.
d.
megasporocyte.
e.
ovule.
41. The micropyle is
a.
the mature male gametophyte.
b.
the inner seed coat.
c.
a small opening at one end of an ovule.
d.
a passageway through the style for sperm.
e.
the eight-cell stage of a plant embryo.
42. In the part of an embryo sac farthest away from the micropyle you should find
a.
the central cell.
b.
a seed.
c.
the pollen tube.
d.
synergids.
e.
antipodal cells.
43. Along with the egg, in the part of an embryo sac next to the micropyle you should find
a.
the central cell.
b.
a seed.
c.
the pollen tube.
d.
synergids.
e.
antipodal cells.
44. In flowering plants how many sperm cells are typically produced from each microspore mother cell?
a.
1
b.
2
c.
3
d.
4
e.
8
45. In flowering plants how many egg cells are typically produced from each megaspore mother cell?
a.
1
b.
2
c.
3
d.
4
e.
8
46. Self-incompatibility in flowering plants is a biochemical recognition and rejection process that
a.
prevents both self-fertilization and self-pollination.
b.
prevents self-pollination and occasionally prevents self-fertilization.
c.
prevents self-fertilization but not self-pollination.
d.
prevents self-pollination but not self-fertilization.
e.
prevents self-fertilization and occasionally prevents self-pollination.
47. When pollen from one species lands on the stigma of a flower from another species
a.
the pollen tube typically does not develop.
b.
the pollen tube typically forms, but the sperm cannot penetrate the egg.
c.
the pollen tube typically forms and grows to the ovary, but then stops.
d.
the pollen tube typically forms, but the sperm are killed.
e.
the pollen tube typically forms and the egg is usually fertilized, but the embryo rarely
grows.
48. Chemical cues that help guide a developing pollen tube toward an ovule are released by the
a.
antipodal cells.
b.
synergids.
c.
egg.
d.
central cell.
e.
sperm.
49. For a typical flowering plant, the first cell of the triploid (3n) endosperm is formed from
a.
one sperm fused with two antipodal cells.
b.
two sperm fused with the egg.
c.
one sperm fused with the central cell.
d.
one sperm fused with the egg.
e.
two sperm fused with a synergid.
50. Unique to flowering plants, the making of an embryo-nourishing ____ is an outcome of double
fertilization.
a.
hypocotyl
b.
endosperm
c.
seed coat
d.
cotyledon
e.
epicotyl
