Biology

Mary Ann Clark, Jung Choi, Matthew Douglas

Chapter 32

Plant Reproduction - all with Video Answers

Educators

Chapter Questions

Problem 1

Figure 32.3 If the anther is missing, what type of reproductive structure will the flower be unable to produce? What term is used to describe a flower that is normally lacking the androecium? What term describes a flower lacking a gynoecium?

Kayla Scholl

Kayla Scholl

Numerade Educator

Problem 2

Figure 32.8 An embryo sac is missing the synergids. What specific impact would you expect this to have on fertilization?
a. The pollen tube will be unable to form.
b. The pollen tube will form but will not be guided toward the egg.
c. Fertilization will not occur because the synergid is the egg.
d. Fertilization will occur but the embryo will not be able to grow.

Kayla Scholl

Numerade Educator

Problem 3

Figure 32.20 What is the function of the cotyledon?
a. It develops into the root.
b. It provides nutrition for the embryo.
c. It forms the embryo.
d. It protects the embryo.

Bryan Lynn

Numerade Educator

Problem 4

In a plant’s male reproductive organs, development of pollen takes place in a structure
known as the ________.
a. stamen
b. microsporangium
c. anther
d. tapetum

Kayla Scholl

Numerade Educator

Problem 5

The stamen consists of a long stalk called the filament that supports the ________.
a. stigma
b. sepal
c. style
d. anther

Bryan Lynn

Numerade Educator

Problem 6

The ________ are collectively called the calyx.
a. sepals
b. petals
c. tepals
d. stamens

Bryan Lynn

Numerade Educator

Problem 7

The pollen lands on which part of the flower?
a. stigma
b. style
c. ovule
d. integument

Kayla Scholl

Numerade Educator

Problem 8

After double fertilization, a zygote and ________ form.
a. an ovule
b. endosperm
c. a cotyledon
d. a suspensor

Kayla Scholl

Numerade Educator

Problem 9

The fertilized ovule gives rise to the ________.
a. fruit
b. seed
c. endosperm
d. embryo

Bryan Lynn

Numerade Educator

Problem 10

What is the term for a fruit that develops from tissues other than the ovary?
a. simple fruit
b. aggregate fruit
c. multiple fruit
d. accessory fruit

Kayla Scholl

Numerade Educator

Problem 11

The ________ is the outermost covering of a fruit.
a. endocarp
b. pericarp
c. exocarp
d. mesocarp

Bryan Lynn

Numerade Educator

Problem 12

________ is a useful method of asexual reproduction for propagating hard-to-root plants.
a. grafting
b. layering
c. cuttings
d. budding

Bryan Lynn

Numerade Educator

Problem 13

Which of the following is an advantage of asexual reproduction?
a. Cuttings taken from an adult plant show increased resistance to diseases.
b. Grafted plants can more successfully endure drought.
c. When cuttings or buds are taken from an adult plant or plant parts, the resulting plant will grow into an adult faster than a seedling.
d. Asexual reproduction takes advantage of a more diverse gene pool.

Kayla Scholl

Numerade Educator

Problem 14

Plants that flower once in their lifetime are known as ________.
a. monoecious
b. dioecious
c. polycarpic
d. monocarpic

Kayla Scholl

Numerade Educator

Problem 15

Plant species that complete their lifecycle in one season are known as ________.
a. biennials
b. perennials
c. annuals
d. polycarpic

Kayla Scholl

Numerade Educator

Problem 16

Describe the reproductive organs inside a flower.

Kayla Scholl

Numerade Educator

Problem 17

Describe the two-stage lifecycle of plants: the gametophyte stage and the sporophyte stage.

Eric Goldman

Numerade Educator

Problem 18

Describe the four main parts, or whorls, of a flower.

Kayla Scholl

Numerade Educator

Problem 19

Discuss the differences between a complete flower and an incomplete flower.

Eric Goldman

Numerade Educator

Problem 20

Why do some seeds undergo a period of dormancy, and how do they break dormancy?

Kayla Scholl

Numerade Educator

Problem 21

Discuss some ways in which fruit seeds are dispersed.

Kayla Scholl

Numerade Educator

Problem 22

What are some advantages of asexual reproduction in plants?

Eric Goldman

Numerade Educator

Problem 23

Describe natural and artificial methods of asexual reproduction in plants.

Eric Goldman

Numerade Educator

Problem 24

Discuss the life cycles of various plants.

Kayla Scholl

Numerade Educator

Problem 25

How are plants classified on the basis of flowering frequency?

Kayla Scholl

Numerade Educator