Question 1

-In the figure above, which structure transports the products of photosynthesis?

Accepted Answer

A) structure A 
B) structure B 
C) structure C 
D) structure D 
A) structure A 
B) structure B 
C) structure C 
D) structure D

Question 2

The "halves" of an individual peanut, which represent its cotyledons, develop from the fertilized zygote and are composed of

Accepted Answer

A) triploid endosperm cells. 
B) haploid endosperm cells. 
C) diploid embryo sporophyte cells. 
D) diploid maternal sporophyte cells. 
A) triploid endosperm cells. 
B) haploid endosperm cells. 
C) diploid embryo sporophyte cells. 
D) diploid maternal sporophyte cells.

Question 3

A number of studies have found that for many plants there is an increase in seed production under conditions of elevated carbon dioxide levels. Which of the following is a likely explanation for this phenomenon?

Accepted Answer

A) The energy needed to produce seeds comes from carbon dioxide. 
B) The carbon needed to produce new plant molecules through photosynthesis requires carbon dioxide. 
C) Increased carbon dioxide levels cause increased cell respiration, which is needed to produce more seeds. 
D) Increased carbon dioxide causes increased plant heating, which speeds up seed production. 
A) The energy needed to produce seeds comes from carbon dioxide. 
B) The carbon needed to produce new plant molecules through photosynthesis requires carbon dioxide. 
C) Increased carbon dioxide levels cause increased cell respiration, which is needed to produce more seeds. 
D) Increased carbon dioxide causes increased plant heating, which speeds up seed production.

Question 4

Which of the following is a disadvantage of cloning as a propagation technique?

Accepted Answer

A) Cloning produces monocultures that can potentially be wiped out by a single disease. 
B) Cloning is more expensive and more difficult than growing from seeds. 
C) Cloning is time-consuming, with slow results. 
D) Cloned organisms are dangerous and unpredictable. 
A) Cloning produces monocultures that can potentially be wiped out by a single disease. 
B) Cloning is more expensive and more difficult than growing from seeds. 
C) Cloning is time-consuming, with slow results. 
D) Cloned organisms are dangerous and unpredictable.

Question 5

Which of the following is an advantage of cloning horticultural crops over sexual propagation?

Accepted Answer

A) Cloned plants are healthier and less susceptible to disease. 
B) Cloning plants can allow growers to produce large numbers of plants with minimal effort and expense. 
C) Cloned plants grow more slowly but have stronger stems. 
D) Cloning provides more variation in flower color and size. 
A) Cloned plants are healthier and less susceptible to disease. 
B) Cloning plants can allow growers to produce large numbers of plants with minimal effort and expense. 
C) Cloned plants grow more slowly but have stronger stems. 
D) Cloning provides more variation in flower color and size.

Question 6

Removing the terminal bud of a plant that shows apical dominance will cause

Accepted Answer

A) an increase in the growth of the root system. 
B) increased growth of the terminal bud. 
C) increased growth of the axillary buds. 
D) an immediate flowering of the plant. 
A) an increase in the growth of the root system. 
B) increased growth of the terminal bud. 
C) increased growth of the axillary buds. 
D) an immediate flowering of the plant.

Question 7

-Which structure in the image has a different number of chromosomes than the others?

Accepted Answer

A) structure A 
B) structure B 
C) structure C 
D) structure D 
A) structure A 
B) structure B 
C) structure C 
D) structure D

Question 8

Which of the following is a function of tracheids?

Accepted Answer

A) food storage 
B) photosynthesis 
C) production of sex cells 
D) water conduction 
A) food storage 
B) photosynthesis 
C) production of sex cells 
D) water conduction

Question 9

Which of the following statements is false?

Accepted Answer

A) Stalks of celery are the petioles of the plant. 
B) White potatoes are modified plant roots. 
C) A carrot is an example of a taproot. 
D) The layers of an onion are actually modified leaves. 
A) Stalks of celery are the petioles of the plant. 
B) White potatoes are modified plant roots. 
C) A carrot is an example of a taproot. 
D) The layers of an onion are actually modified leaves.

Question 10

What is the evolutionary advantage of the very long life span of some plants?

Accepted Answer

A) the ability to adapt to changing environments 
B) the ability to develop resistance to many diseases 
C) the ability to produce many offspring over many years 
D) the ability to grow back after being damaged 
A) the ability to adapt to changing environments 
B) the ability to develop resistance to many diseases 
C) the ability to produce many offspring over many years 
D) the ability to grow back after being damaged

Question 11

The male organ of a flower is the

Accepted Answer

A) style. 
B) stamen. 
C) sepal. 
D) carpel. 
A) style. 
B) stamen. 
C) sepal. 
D) carpel.

Question 12

The genetically identical organisms that result from asexual reproduction are called

Accepted Answer

A) clones. 
B) seeds. 
C) seedlings. 
D) rootlets. 
A) clones. 
B) seeds. 
C) seedlings. 
D) rootlets.

Question 13

Which of the following plant parts commonly contributes to asexual reproduction?

Accepted Answer

A) seeds 
B) roots 
C) flowers 
D) fruits 
A) seeds 
B) roots 
C) flowers 
D) fruits

Question 14

Which of the following flower parts produces female gametophytes?

Accepted Answer

A) anthers 
B) ovules 
C) stigmas 
D) sepals 
A) anthers 
B) ovules 
C) stigmas 
D) sepals

Question 15

While cleaning out the attic, you find a packet of seeds that your grandmother gathered from her garden. You plant them outside, and some of them sprout. What was the condition of these germinating seeds while they were in the attic?

Accepted Answer

A) The endosperm cells were dead; the embryo cells were alive but inactive. 
B) They were dead, but the embryo cells revived in response to water. 
C) They were alive and very metabolically active. 
D) They were alive but dormant. 
A) The endosperm cells were dead; the embryo cells were alive but inactive. 
B) They were dead, but the embryo cells revived in response to water. 
C) They were alive and very metabolically active. 
D) They were alive but dormant.

Question 16

The growth that pushes a root down through the soil takes place through

Accepted Answer

A) cell elongation at the tip of the root cap. 
B) cell division in the apical meristem. 
C) cell elongation behind the root tip. 
D) differentiation of xylem cells in the apical meristem. 
A) cell elongation at the tip of the root cap. 
B) cell division in the apical meristem. 
C) cell elongation behind the root tip. 
D) differentiation of xylem cells in the apical meristem.

Question 17

-In the figure above, which structure allows sufficient water to enter the leaf?

Accepted Answer

A) structure A 
B) structure B 
C) structure C 
D) structure D 
A) structure A 
B) structure B 
C) structure C 
D) structure D

Question 18

If you carve your initials in the trunk of a tree, will they move up as the tree grows?

Accepted Answer

A) Yes. A tree elongates from the ground up. 
B) Yes. Secondary growth will cause them to move up. 
C) No. Elongation occurs just below the tips of growing stems in the apical meristems. 
D) Yes. Growth continues in all parts of a plant throughout its life. 
A) Yes. A tree elongates from the ground up. 
B) Yes. Secondary growth will cause them to move up. 
C) No. Elongation occurs just below the tips of growing stems in the apical meristems. 
D) Yes. Growth continues in all parts of a plant throughout its life.

Question 19

A mature ovary, specialized as a vessel that houses and protects seeds, is a

Accepted Answer

A) fruit. 
B) ovule. 
C) cotyledon. 
D) seed coat. 
A) fruit. 
B) ovule. 
C) cotyledon. 
D) seed coat.

Question 20

New growth that increases stem length on a plant arises mainly from

Accepted Answer

A) the base of the stem. 
B) apical meristems. 
C) the tips of leaves. 
D) the vascular cambium. 
A) the base of the stem. 
B) apical meristems. 
C) the tips of leaves. 
D) the vascular cambium.

Exam 31: Plant Structure, Growth, and Reproduction

-In the figure above, which structure transports the products of photosynthesis?

The "halves" of an individual peanut, which represent its cotyledons, develop from the fertilized zygote and are composed of

A number of studies have found that for many plants there is an increase in seed production under conditions of elevated carbon dioxide levels. Which of the following is a likely explanation for this phenomenon?

Which of the following is a disadvantage of cloning as a propagation technique?

Which of the following is an advantage of cloning horticultural crops over sexual propagation?

Removing the terminal bud of a plant that shows apical dominance will cause

-Which structure in the image has a different number of chromosomes than the others?

Which of the following is a function of tracheids?

Which of the following statements is false?

What is the evolutionary advantage of the very long life span of some plants?

The male organ of a flower is the

The genetically identical organisms that result from asexual reproduction are called

Which of the following plant parts commonly contributes to asexual reproduction?

Which of the following flower parts produces female gametophytes?

While cleaning out the attic, you find a packet of seeds that your grandmother gathered from her garden. You plant them outside, and some of them sprout. What was the condition of these germinating seeds while they were in the attic?

The growth that pushes a root down through the soil takes place through

-In the figure above, which structure allows sufficient water to enter the leaf?

If you carve your initials in the trunk of a tree, will they move up as the tree grows?

A mature ovary, specialized as a vessel that houses and protects seeds, is a

New growth that increases stem length on a plant arises mainly from

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

DNA Technology and Genomics

How Populations Evolve

The Origin of Species

Tracing Evolutionary History

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

the Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

the Senses

How Animals Move

Plant Nutrition and Transport

Control Systems in Plants

the Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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