Botany Chapter 24 Study Guide
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1. After fertilization in a flowering plant, the central cell develops into the _____.
a. zygote
c. pollen tube
b. endosperm
d. fruit
2. Where does the process of double fertilization occur in flowering plants?
a. in the pollen tube
c. in the central nucleus
b. in the stigma
d. in the ovule
3. Which plant has seeds that might be stimulated to grow after a fire?
a. apple tree
c. prairie wildflowers
b. maple tree
d. tulips
4. During a plant's life cycle the gametophyte produces _____.
a. seeds
c. gametes
b. spores
d. endosperm
5. The sperm of a moss is produced within the structure called the _____.
a. archegonia
c. capsule
b. antheridia
d. spore
6. After fertilization in conifers, the zygote develops into a(n) _____.
a. pollen grain
c. gametophyte
b. embryo
d. cotyledon
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7. In the fern life cycle, a spore germinates to form a(n) _____.
a. thallose
c. prothallus
b. antheridia
d. sporophyte
8. The megaspore of a conifer will become _____.
a. female gametophyte
c. male sporophyte
b. male gametophyte
d. female sporophyte
9. A flower that has sepals, petals, stamens, and pistils is called a _____ flower.
a. female
c. complete
b. male
d. incomplete
____ 10. Which statement is false?
a. Flowers are reproductive shoots.
b. Trees are gametophytes.
c. Sporophyte plants reproduce asexually.
d. Cells produced by mitosis are clones.
e. Gametophytes are haploid.
____ 11. Which of the following develops into seed?
a. flower
b. ovary
c. carpel
d. ovule
e. pistil
____ 12. The male part of a flower includes the
a. carpel.
b. stigma.
c. filament.
d. anther.
e. both the filament and anther.
____ 13. A stamen is
a. composed of a stigma, a style, and an ovary.
b. the mature male gametophyte.
c. the site where microspores are produced.
d. part of the vegetative phase of an angiosperm.
e. none of these
____ 14. What name is given to flowers with both stamens and carpels?
a. complete
b. female
c. male
d. imperfect
e. perfect
____ 15. Which forms the outermost whorl of flower parts?
a. sepals
b. petals
c. anthers
d. pistils
e. stamens
____ 16. The evolution of flowers and their insect pollinators is an example of
a. parallel evolution.
b. regressive evolution.
c. coevolution.
d. convergent evolution.
e. divergent evolution.
____ 17. Insects are attracted to flowers by
a. nectaries.
b. specific colors.
c. specific color patterns.
d. floral odors.
e. all of these
____ 18. Foul-smelling flowers may be pollinated by
a. birds.
b. beetles and flies.
c. bees and bumblebees.
d. wasps.
e. bugs and butterflies.
____ 19. The process during which the diploid set of chromosomes become haploid is
a. metastasis.
b. fertilization.
c. cleavage.
d. meiosis.
e. none of these
____ 20. The female gametophyte is the
a. nucellus.
b. ovule.
c. embryo sac.
d. endosperm.
e. ovary.
____ 21. The egg is
a. diploid.
b. tetraploid.
c. polyploid.
d. triploid.
e. haploid.
____ 22. The primary function of the endosperm is
a. protection.
b. reproduction.
c. growth.
d. nutrition.
e. water absorption.
____ 23. Pollination occurs when pollen contacts the
a. micropyle.
b. stigma.
c. style.
d. anther.
e. embryo sac.
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24. The pollen tube grows to or through which of the following?
a. stigma
b. style
c. ovary
d. micropyle
e. all of these
____ 25. The endosperm is usually
a. diploid.
b. tetraploid.
c. polyploid.
d. triploid.
e. haploid.
____ 26. The zygote is
a. diploid.
b. tetraploid.
c. polyploid.
d. triploid.
e. haploid.
____ 27. The seed is produced by the development of the
a. embryo.
b. ovule.
c. ovary.
d. zygote.
e. pollen.
____ 28. Fruit is produced from the development of the
a. zygote.
b. ovule.
c. flowers.
d. cotyledon.
e. ovary.
____ 29. The primary purpose of fruits is
a. attracting pollinators.
b. providing nutrients to seeds.
c. protecting the seeds from animals.
d. dispersing the seeds.
e. providing nutrients to animals.
____ 30. The seeds of fleshy fruits are most likely to be spread by
a. animals.
b. water.
c. wind.
d. explosion.
e. insects.
____ 31. The most critical factor affecting the initiation of seed germination is
a. increasing day length.
b. oxygen availability.
c. water absorption.
d. warmth.
e. none is most critical; all are equal
____ 32. Short-day plants
a. flower in spring.
b. will not bloom until they have been exposed to a dark period longer than a critical length.
c. flower in the fall.
d. will not bloom if their dark period is interrupted by two to five minutes of light.
e. all of these
____ 33. Four of the five answers listed below are related by gender. Select the exception.
a. carpel
b. ovary
c. stamen
d. style
e. stigma
Figure 24-4
____ 34. Which is the sporophyte in Figure 24-4?
a. A
c. C
b. B
d. D
____ 35. Which type of plant is shown in Figure 24-4?
a. conifer
c. gametophyte
b. fern
d. anthophyte
Figure 24-5
____ 36. Where does the fertilization occur in Figure 24-5?
a. A
c. C
b. B
d. D
____ 37. From where is the sperm released in Figure 24-5?
a. A
c. C
b. B
d. D
Name_____________________________________ Block_________________Date ___________________
Botany Chapter 24 Test
Short Answer
40. Label the parts of a flower. 1 point/blank (12 points)
In the space below diagram and label the alternation of generations in flowering plants. You
must include all of the following terms: diploid, haploid, gametophyte, microspore, megaspore,
sporophyte, ovule, sperm, fertilization, mitosis, meiosis, egg, pollen grain, ovary, anther, seed
and fruit.
Photosynthesis
1. Label the photosynthesis diagram.
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B____________________________________
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D____________________________________
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2. Write the balanced chemical equation for photosynthesis.
3. What is the purpose of the light reactions? Where in the chloroplast do the light reactions
take place?
4. What is the purpose of the Calvin Cycle? Where does the Calvin Cycle take place?