Name: 
 

Chapter 38



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Which of the following is the correct sequence during alternation of generations in a flowering plant?
a.
sporophyte-meiosis-gametophyte-gametes-fertilization-diploid zygote
b.
sporophyte-mitosis-gametophyte-meiosis-sporophyte
c.
haploid gametophyte-gametes-meiosis-fertilization-diploid sporophyte
d.
sporophyte-spores-meiosis-gametophyte-gametes
e.
haploid sporophyte-spores-fertilization-diploid gametophyte
 

 2. 

All of the following are features of angiosperms except
a.
a triploid endosperm.
b.
an ovary that becomes a fruit.
c.
animal pollination.
d.
a small (reduced) sporophyte.
e.
double fertilization.
 

 3. 

A mutation in which of the following floral parts would have the greatest impact on pollination?
a.
sepal
b.
petal
c.
stamen
d.
carpel
e.
either C or D
 

 4. 

Which of the following is the correct order of floral organs from the outside to the inside of a complete flower?
a.
petals-sepals-stamens-carpels
b.
sepals-stamens-petals-carpels
c.
spores-gametes-zygote-embryo
d.
sepals-petals-stamens-carpels
e.
male gametophyte-female gametophyte-sepals-petals
 

 5. 

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.
 

 6. 

In flowering plants, pollen is released from the
a.
anther.
b.
stigma.
c.
carpel.
d.
filament.
e.
pollen tube.
 

 7. 

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
 

 8. 

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.
 

 9. 

What is the relationship between pollination and fertilization in flowering plants?
a.
Fertilization precedes pollination.
b.
Pollination easily occurs between plants of different species.
c.
Pollen is formed within megasporangia so that male and female gametes are near each other.
d.
Pollination brings gametophytes together so that fertilization can occur.
e.
If fertilization occurs, pollination is unnecessary.
 

 10. 

You are studying a plant from the Amazon that shows strong self-incompatibility. To characterize this reproductive mechanism, you would look for
a.
ribonuclease (RNAase) activity in stigma cells.
b.
RNA in the plants.
c.
pollen grains with very thick walls.
d.
carpels that cannot produce eggs by meiosis.
e.
systems of wind, but not insect, pollination.
 

 11. 

Which of the following statements regarding the endosperm is false?
a.
Its nutrients may be absorbed by the cotyledons in the seeds of eudicots.
b.
It develops from a triploid cell.
c.
Its nutrients are digested by enzymes in monocot seeds following hydration.
d.
It develops from the fertilized egg.
e.
It is rich in nutrients, which it provides to the embryo.
 

 12. 

What is the embryonic root called?
a.
plumule
b.
hypocotyl
c.
epicotyl
d.
radicle
e.
shoot
 

 13. 

Which of these structures is unique to the seed of a monocot?
a.
cotyledon
b.
endosperm
c.
coleoptile
d.
radicle
e.
seed coat
 

 14. 

Fruits develop from
a.
microsporangia.
b.
receptacles.
c.
fertilized eggs.
d.
ovaries.
e.
ovules.
 

 15. 

The first step in the germination of a seed is usually
a.
pollination.
b.
fertilization.
c.
imbibition of water.
d.
hydrolysis of starch and other food reserves.
e.
emergence of the radicle.
 

 16. 

Regardless of where in the world a vineyard is located, in order for the winery to produce a Burgundy, it must use varietal grapes that originated in Burgundy, France. The most effective way for a new California grower to plant a vineyard to produce Burgundy is to
a.
plant seeds obtained from French varietal Burgundy grapes.
b.
transplant varietal Burgundy plants from France.
c.
root cuttings of varietal Burgundy grapes from France.
d.
cross French Burgundy grapes with native American grapes.
e.
graft varietal Burgundy grape scions onto native (Californian) root stocks.
 



 
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