OpenStax Biology 2e Instructor Answer Guide
Biology 2e
Unit 6: Plant Structure and Function
Chapter 32: Plant Reproduction
Visual Connection Questions
1. If the anther is missing, what type of reproductive structure will the flower be unable to
produce? What term is used to describe an incomplete flower lacking the androecium? What
term describes an incomplete flower lacking a gynoecium?
Pollen (or sperm); carpellate; staminate.
2. An embryo sac is missing the synergids. What specific impact would you expect this to have
on fertilization?
B: The pollen tube will form but will not be guided toward the egg.
, OpenStax Biology 2e Instructor Answer Guide
3. What of the following statements is true?
b. the radicle develops into the root.
Review Questions
4. In a plant’s male reproductive organs, development of pollen takes place in a structure
known as the ________.
b. microsporangium
5. The stamen consists of a long stalk called the filament that supports the ________.
d. anther
6. The ________ are collectively called the calyx.
a. sepals
7. The pollen lands on which part of the flower?
a. stigma
8. After double fertilization, a zygote and ________ form.
b. endosperm
9. The fertilized ovule gives rise to the ________.
b. seed
10. What is the term for a fruit that develops from tissues other than the ovary?
d. accessory fruit
11. The ________ is the outermost covering of a fruit.
c. exocarp
12. ________ is a useful method of asexual reproduction for propagating hard-to-root plants.
a. grafting
Biology 2e
Unit 6: Plant Structure and Function
Chapter 32: Plant Reproduction
Visual Connection Questions
1. If the anther is missing, what type of reproductive structure will the flower be unable to
produce? What term is used to describe an incomplete flower lacking the androecium? What
term describes an incomplete flower lacking a gynoecium?
Pollen (or sperm); carpellate; staminate.
2. An embryo sac is missing the synergids. What specific impact would you expect this to have
on fertilization?
B: The pollen tube will form but will not be guided toward the egg.
, OpenStax Biology 2e Instructor Answer Guide
3. What of the following statements is true?
b. the radicle develops into the root.
Review Questions
4. In a plant’s male reproductive organs, development of pollen takes place in a structure
known as the ________.
b. microsporangium
5. The stamen consists of a long stalk called the filament that supports the ________.
d. anther
6. The ________ are collectively called the calyx.
a. sepals
7. The pollen lands on which part of the flower?
a. stigma
8. After double fertilization, a zygote and ________ form.
b. endosperm
9. The fertilized ovule gives rise to the ________.
b. seed
10. What is the term for a fruit that develops from tissues other than the ovary?
d. accessory fruit
11. The ________ is the outermost covering of a fruit.
c. exocarp
12. ________ is a useful method of asexual reproduction for propagating hard-to-root plants.
a. grafting
