Question 1

In the fern life cycle, how do spores and gametes differ?

Accepted Answer

A) Gametes are easily visible to the unaided eye; spores are not. 
B) Spores are produced mitotically; gametes are produced meiotically. 
C) Meiotic cell division produces haploid spores; mitotic cell division produces haploid gametes. 
D) Gametes are diploid; spores are haploid. 
E) Gametes are produced by the sporophyte. 
A) Gametes are easily visible to the unaided eye; spores are not. 
B) Spores are produced mitotically; gametes are produced meiotically. 
C) Meiotic cell division produces haploid spores; mitotic cell division produces haploid gametes. 
D) Gametes are diploid; spores are haploid. 
E) Gametes are produced by the sporophyte. C

Question 2

Which of the following is TRUE for female reproductive structures in angiosperms?

Accepted Answer

A) The stamen includes the filament and pollen-producing anther. 
B) The sepals are contained within the petals, which enclose the carpel. 
C) The carpel includes a stigma, a style, and ovules enclosed within an ovary. 
D) The filament and anther enclose the stigma and style. 
E) The style, which is vase-shaped, contains the ovary, stigma, and anther. 
A) The stamen includes the filament and pollen-producing anther. 
B) The sepals are contained within the petals, which enclose the carpel. 
C) The carpel includes a stigma, a style, and ovules enclosed within an ovary. 
D) The filament and anther enclose the stigma and style. 
E) The style, which is vase-shaped, contains the ovary, stigma, and anther. C

Question 3

When a seed germinates, what usually emerges from the seed coat first? Why?

Accepted Answer

The root emerges first because it can absorb water and nutrients from the soil.

Question 4

If a plant such as an iris reproduces asexually most of the time, it probably:

Accepted Answer

A) is found in a changing environment. 
B) produces offspring that move into new environments. 
C) lacks the ability to make flowers. 
D) forms spores. 
E) has offspring that live in the same environment as the parents. 
A) is found in a changing environment. 
B) produces offspring that move into new environments. 
C) lacks the ability to make flowers. 
D) forms spores. 
E) has offspring that live in the same environment as the parents.

Question 5

In general, plant evolution has moved from ________ to ________.

Accepted Answer

A) dominant gametophyte; dominant sporophyte 
B) dominant sporophyte; dominant gametophyte 
C) dominant spore; dominant gamete 
D) dominant gamete; dominant spore 
E) dominant gamete; dominant gametophyte 
A) dominant gametophyte; dominant sporophyte 
B) dominant sporophyte; dominant gametophyte 
C) dominant spore; dominant gamete 
D) dominant gamete; dominant spore 
E) dominant gamete; dominant gametophyte

Question 6

Desert plants often have ________ in their seed coats that keep them dormant until there is sufficient water to complete their life cycle.

Accepted Answer

A) drying agents 
B) cold-sensitive compounds 
C) digestive enzymes 
D) wetting agents 
E) inhibitory compounds 
A) drying agents 
B) cold-sensitive compounds 
C) digestive enzymes 
D) wetting agents 
E) inhibitory compounds

Question 7

Describe the process of alternation of generations in plants.

Accepted Answer

The haploid gametophyte produc

Question 8

How many sperm are produced by an angiosperm pollen grain when it grows its pollen tube?

Accepted Answer

A) one 
B) two 
C) three 
D) four 
A) one 
B) two 
C) three 
D) four

Question 9

Both monocots and dicots protect their young shoots as they emerge from the soil. Describe how each group accomplishes this.

Accepted Answer

In monocots, the col

Question 10

When we consume whole grains, we are eating endosperm. True or False?

Accepted Answer

A) True 
 B)False

Question 11

Briefly describe how a seed develops from the ovule.

Accepted Answer

There are three processes: (1)the integu

Question 12

Yucca flowers are pollinated only by yucca moths, which lay their eggs in the flower's ovary. This interaction ensures that the plant has seed for the next generation and that the moth larvae have a food source. What is a potential disadvantage or vulnerability of this very specialized plananimal interaction?

Accepted Answer

A) The plant ovary may be consumed by the larvae, which would kill all the developing seeds. 
B) If the moths are killedfor example, by insecticidesthe plant will not be pollinated. 
C) Pollination can occur only during the day, but the moths are most active at night. 
D) Other moths that do not serve as pollinators may outcompete the yucca moths. 
A) The plant ovary may be consumed by the larvae, which would kill all the developing seeds. 
B) If the moths are killedfor example, by insecticidesthe plant will not be pollinated. 
C) Pollination can occur only during the day, but the moths are most active at night. 
D) Other moths that do not serve as pollinators may outcompete the yucca moths.

Question 13

All of the following are included in the male parts of a flower EXCEPT:

Accepted Answer

A) stamens. 
B) ovules. 
C) pollen. 
D) anthers. 
A) stamens. 
B) ovules. 
C) pollen. 
D) anthers.

Question 14

Spores and gametes are both haploid reproductive cells. What is the difference between them?

Accepted Answer

A) Unlike gametes, spores germinate and grow into a multicellular haploid gametophyte. 
B) Unlike gametes, spores fuse and form a diploid zygote that eventually becomes the sporophyte. 
C) Spores are found only in plants that reproduce asexually, and gametes are found only in plants that reproduce sexually. 
D) Unlike spores, gametes germinate and grow into a multicellular haploid gametophyte. 
A) Unlike gametes, spores germinate and grow into a multicellular haploid gametophyte. 
B) Unlike gametes, spores fuse and form a diploid zygote that eventually becomes the sporophyte. 
C) Spores are found only in plants that reproduce asexually, and gametes are found only in plants that reproduce sexually. 
D) Unlike spores, gametes germinate and grow into a multicellular haploid gametophyte.

Question 15

What are the advantages of producing gametes within a flower?

Accepted Answer

This helps with reproduction on land bec

Question 16

What are the typical shape, color, and nectar content of a flower that is pollinated by a hummingbird? What are the traits of a bee-pollinated flower?

Accepted Answer

Hummingbird-pollinated flowers have a de

Question 17

Which of the following is "male" in the life cycle of angiosperms?

Accepted Answer

A) embryo sac 
B) megaspore mother cell 
C) pollen grain 
D) seed cone 
E) endosperm 
A) embryo sac 
B) megaspore mother cell 
C) pollen grain 
D) seed cone 
E) endosperm

Question 18

What is the function of the stigma of a flower?

Accepted Answer

to serve a

Question 19

In dicots, the shoot tip is protected by:

Accepted Answer

A) a slime layer formed by the shoot cells. 
B) the coleoptile. 
C) the hook of the hypocotyl. 
D) a woody sheath around the epicotyl. 
A) a slime layer formed by the shoot cells. 
B) the coleoptile. 
C) the hook of the hypocotyl. 
D) a woody sheath around the epicotyl.

Question 20

A group of geneticists exposed the seeds of a dicot plant to various levels of radiation in order to induce random mutations. Many of the irradiated seeds failed to germinate at all. Some of the seeds, however, germinated in the lab and were carefully studied. The scientists discovered a mutation that prevents the formation of a hypocotyl or epicotyl hook during germination. Based on this scenario, the mutant plant most likely:

Accepted Answer

A) germinated and grew like a normal plant. 
B) had damage to the apical meristem as the seedling emerged from the soil. 
C) had damage to the cotyledons as the seedling emerged from the soil. 
D) had damage to the emerging root tip. 
E) was not be able to photosynthesize. 
A) germinated and grew like a normal plant. 
B) had damage to the apical meristem as the seedling emerged from the soil. 
C) had damage to the cotyledons as the seedling emerged from the soil. 
D) had damage to the emerging root tip. 
E) was not be able to photosynthesize.

Exam 44: Plant Reproduction and Development

In the fern life cycle, how do spores and gametes differ?

Which of the following is TRUE for female reproductive structures in angiosperms?

When a seed germinates, what usually emerges from the seed coat first? Why?

If a plant such as an iris reproduces asexually most of the time, it probably:

In general, plant evolution has moved from ________ to ________.

Desert plants often have ________ in their seed coats that keep them dormant until there is sufficient water to complete their life cycle.

Describe the process of alternation of generations in plants.

How many sperm are produced by an angiosperm pollen grain when it grows its pollen tube?

Both monocots and dicots protect their young shoots as they emerge from the soil. Describe how each group accomplishes this.

When we consume whole grains, we are eating endosperm. True or False?

Briefly describe how a seed develops from the ovule.

All of the following are included in the male parts of a flower EXCEPT:

Spores and gametes are both haploid reproductive cells. What is the difference between them?

What are the advantages of producing gametes within a flower?

What are the typical shape, color, and nectar content of a flower that is pollinated by a hummingbird? What are the traits of a bee-pollinated flower?

Which of the following is "male" in the life cycle of angiosperms?

What is the function of the stigma of a flower?

In dicots, the shoot tip is protected by:

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Responses to the Environment

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In general, plant evolution has moved from to .