Question 1

Briefly describe how a seed develops from the ovule.

Accepted Answer

There are three processes: (1) the integ

Question 2

Megaspore mother cells are diploid.

Accepted Answer

A) True 
 B)False

Question 3

An incomplete flower

Accepted Answer

A)  lacks one or more of the four basic floral parts. 
B)  manufactures infertile pollen. 
C)  is incapable of self-fertilization. 
D)  remains in the bud stage and does not bloom. 
E)  produces sterile seeds. 
A)  lacks one or more of the four basic floral parts. 
B)  manufactures infertile pollen. 
C)  is incapable of self-fertilization. 
D)  remains in the bud stage and does not bloom. 
E)  produces sterile seeds.

Question 4

Angiosperms with wind-dispersed pollen include

Accepted Answer

A)  pine trees. 
B)  roses. 
C)  mosses. 
D)  grasses. 
E)  ferns. 
A)  pine trees. 
B)  roses. 
C)  mosses. 
D)  grasses. 
E)  ferns.

Question 5

Which of the following statements is TRUE?

Accepted Answer

A)  The filament and anther enclose the stigma and style. 
B)  When mature, the ovules will become seeds and the ovary will develop into a fruit. 
C)  The style, which is vase-shaped, contains the ovary, stigma, and anther. 
D)  When mature, the stamen will become the seed and the stigma will become the fruit. 
E)  When mature, the carpel will become the seed and the anther will become the fruit. 
A)  The filament and anther enclose the stigma and style. 
B)  When mature, the ovules will become seeds and the ovary will develop into a fruit. 
C)  The style, which is vase-shaped, contains the ovary, stigma, and anther. 
D)  When mature, the stamen will become the seed and the stigma will become the fruit. 
E)  When mature, the carpel will become the seed and the anther will become the fruit.

Question 6

Describe the process of alternation of generations in plants.

Accepted Answer

The haploid gametophyte produc

Question 7

Cotyledons, or ʺseed leaves,ʺ absorb food molecules stored in the

Accepted Answer

A)  gametophyte. 
B)  ovary wall. 
C)  megaspore. 
D)  endosperm. 
E)  sporophyte. 
A)  gametophyte. 
B)  ovary wall. 
C)  megaspore. 
D)  endosperm. 
E)  sporophyte.

Question 8

The sporophyte produces

Accepted Answer

A)  spores by meiosis. 
B)  gametes by meiosis. 
C)  gametes by mitosis, followed by meiosis. 
D)  spores by mitosis. 
E)  gametes by mitosis. 
A)  spores by meiosis. 
B)  gametes by meiosis. 
C)  gametes by mitosis, followed by meiosis. 
D)  spores by mitosis. 
E)  gametes by mitosis.

Question 9

A diploid fertilized egg is called a(n)__________ .

Accepted Answer

The answer of A diploid fertilized egg is called a(n)__________...

Question 10

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. 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 hook during germination. Based on this scenario, the mutant plant most likely germinated

Accepted Answer

A)  but the mutated hypocotyl hook caused damage to the emerging root tip. 
B)  but was unable to photosynthesize. 
C)  but the mutated hypocotyl hook failed to push the cotyledons above the soil. 
D)  and grew like a normal plant. 
E)  but damage to the cotyledons prevented the seedlingsʹ emergence from the soil. 
A)  but the mutated hypocotyl hook caused damage to the emerging root tip. 
B)  but was unable to photosynthesize. 
C)  but the mutated hypocotyl hook failed to push the cotyledons above the soil. 
D)  and grew like a normal plant. 
E)  but damage to the cotyledons prevented the seedlingsʹ emergence from the soil.

Question 11

The sexual life cycle of plants is described as alternation of generations because it alternates between

Accepted Answer

A)  male plants and female plants. 
B)  sporophytes and gametophytes. 
C)  flowers and spores. 
D)  eggs and sperm. 
E)  reproductive plants and vegetative plants. 
A)  male plants and female plants. 
B)  sporophytes and gametophytes. 
C)  flowers and spores. 
D)  eggs and sperm. 
E)  reproductive plants and vegetative plants.

Question 12

Plants that grow in__________ areas most likely do not require drying or exposure to cold to break dormancy were it to occur.

Accepted Answer

A)  desert 
B)  arctic 
C)  northern temperate 
D)  subtropical or tropical 
A)  desert 
B)  arctic 
C)  northern temperate 
D)  subtropical or tropical

Question 13

Ferns and mosses mainly live in __________environments.

Accepted Answer

A)  moist 
B)  desert 
C)  arid 
D)  sterile 
A)  moist 
B)  desert 
C)  arid 
D)  sterile

Question 14

The female gametophyte of angiosperms is made up of eight diploid cells and one haploid egg cell.

Accepted Answer

A) True 
 B)False

Question 15

The seed coat develops from the

Accepted Answer

A)  ovary wall. 
B)  wall of the pollen sac. 
C)  female gametophyte. 
D)  endosperm. 
E)  integuments of the ovule. 
A)  ovary wall. 
B)  wall of the pollen sac. 
C)  female gametophyte. 
D)  endosperm. 
E)  integuments of the ovule.

Question 16

The male reproductive structure, the stamen, consists of

Accepted Answer

A)  the stigma, style, and ovary. 
B)  a filament that bears an anther. 
C)  one or more sepals, the style, and one or more anthers. 
D)  a single sepal, four or more petals, and the entire carpel. 
E)  a carpel enclosed in the petals, then the sepals. 
A)  the stigma, style, and ovary. 
B)  a filament that bears an anther. 
C)  one or more sepals, the style, and one or more anthers. 
D)  a single sepal, four or more petals, and the entire carpel. 
E)  a carpel enclosed in the petals, then the sepals.

Question 17

How many sperm nuclei are necessary for the successful fertilization of flowering plants?

Accepted Answer

The answer of How many sperm nuclei are necessary for...

Question 18

The American holly tree requires a ?male? tree and a ?female? tree to produce red berries in the winter, which indicates that the male flowers lack __________and the female flowers lack__________ .

Accepted Answer

A)  petals; ovules 
B)  carpels; stamens 
C)  sepals; anthers 
D)  anthers; stamens 
E)  petals; carpels 
A)  petals; ovules 
B)  carpels; stamens 
C)  sepals; anthers 
D)  anthers; stamens 
E)  petals; carpels

Question 19

The first leaves produced by an embryo while still inside the seed are

Accepted Answer

A)  endosperms. 
B)  coleoptiles. 
C)  cotyledons. 
D)  epicotyls. 
E)  embryo sacs. 
A)  endosperms. 
B)  coleoptiles. 
C)  cotyledons. 
D)  epicotyls. 
E)  embryo sacs.

Question 20

When wheat is processed to make white, all -purpose flour, the wheat is passed through rollers that pop off the embryo and the ovary wall. Some people add ʺwheat germʺ to the white flour used to make baked goods in order to increase the protein content of these products. What is wheat germ?

Accepted Answer

A)  Endosperm 
B)  Wheat fruit 
C)  Embryo 
D)  Wheat flour 
E)  Bran 
A)  Endosperm 
B)  Wheat fruit 
C)  Embryo 
D)  Wheat flour 
E)  Bran

Exam 45: Plant Reproduction and Development

Briefly describe how a seed develops from the ovule.

Megaspore mother cells are diploid.

An incomplete flower

Angiosperms with wind-dispersed pollen include

Which of the following statements is TRUE?

Describe the process of alternation of generations in plants.

Cotyledons, or ʺseed leaves,ʺ absorb food molecules stored in the

The sporophyte produces

A diploid fertilized egg is called a(n)__________ .

The sexual life cycle of plants is described as alternation of generations because it alternates between

Plants that grow in__________ areas most likely do not require drying or exposure to cold to break dormancy were it to occur.

Ferns and mosses mainly live in __________environments.

The female gametophyte of angiosperms is made up of eight diploid cells and one haploid egg cell.

The seed coat develops from the

The male reproductive structure, the stamen, consists of

How many sperm nuclei are necessary for the successful fertilization of flowering plants?

The American holly tree requires a ?male? tree and a ?female? tree to produce red berries in the winter, which indicates that the male flowers lack __________and the female flowers lack__________ .

The first leaves produced by an embryo while still inside the seed are

When wheat is processed to make white, all -purpose flour, the wheat is passed through rollers that pop off the embryo and the ovary wall. Some people add ʺwheat germʺ to the white flour used to make baked goods in order to increase the protein content of these products. What is wheat germ?

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

Cellular Reproduction

Meiosis: the Basis of Sexual 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 Amid 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

Energy Flow and Nutrient Cycling in Ecosystems

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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The American holly tree requires a ?male? tree and a ?female? tree to produce red berries in the winter, which indicates that the male flowers lack and the female flowers lack .