Question 1

The increase in girth associated with production of wood and bark in trees occurs as a consequence of

Accepted Answer

A)  primary growth. 
B)  secondary growth. 
C)  apical meristem growth 
D)  indeterminate growth. 
A)  primary growth. 
B)  secondary growth. 
C)  apical meristem growth 
D)  indeterminate growth.

Question 2

What is an advantage of cloning horticultural crops rather than using sexual propagation to grow them?

Accepted Answer

A)  Cloned plants are healthier and less susceptible to disease. 
B)  Cloning plants allows for large production 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 with minimal effort and expense. 
A)  Cloned plants are healthier and less susceptible to disease. 
B)  Cloning plants allows for large production 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 with minimal effort and expense.

Question 3

-Which structures ensure that too much water does not leave the leaf?

Accepted Answer

A)  structures A and B 
B)  structures B and C 
C)  structures C and D 
D)  structures D and A 
A)  structures A and B 
B)  structures B and C 
C)  structures C and D 
D)  structures D and A

Question 4

Bark consists of

Accepted Answer

A)  secondary xylem, cork cambium, and cork. 
B)  secondary phloem, cork cambium, and cork. 
C)  cork cambium and pith. 
D)  cork only. 
A)  secondary xylem, cork cambium, and cork. 
B)  secondary phloem, cork cambium, and cork. 
C)  cork cambium and pith. 
D)  cork only.

Question 5

This image represents monocots and eudicots. Which labeled row shows traits that are incorrectly categorized?

Accepted Answer

A)  row A-all eudicots 
B)  row A-all monocots 
C)  row B-all eudicots 
A)  row A-all eudicots 
B)  row A-all monocots 
C)  row B-all eudicots

Question 6

The chief function of root hairs is to

Accepted Answer

A)  decrease the anchoring power of roots. 
B)  increase the surface area for efficient absorption of water and minerals. 
C)  provide a direct passageway from the soil to the vascular cylinder. 
A)  decrease the anchoring power of roots. 
B)  increase the surface area for efficient absorption of water and minerals. 
C)  provide a direct passageway from the soil to the vascular cylinder.

Question 7

A number of studies have found that for many plants there is an increase in seed production under conditions of elevated carbon dioxide levels. What 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. 
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.

Question 8

The genetically identical organisms that result from asexual reproduction are called

Accepted Answer

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

Question 9

Monocot floral parts usually occur in multiples of

Accepted Answer

A)  five. 
B)  four. 
C)  two. 
D)  three. 
A)  five. 
B)  four. 
C)  two. 
D)  three.

Question 10

How does the sperm of an angiosperm reach the egg?

Accepted Answer

A)  via the pollen tube that grows from the pollen grain through the carpel tissues to the ovule 
B)  via the pollen tube that grows from the ovule to reach the pollen grain on the stigma 
C)  usually via an insect, which places sperm in the ovary while probing for nectar 
D)  by actively swimming down through the style to the egg 
A)  via the pollen tube that grows from the pollen grain through the carpel tissues to the ovule 
B)  via the pollen tube that grows from the ovule to reach the pollen grain on the stigma 
C)  usually via an insect, which places sperm in the ovary while probing for nectar 
D)  by actively swimming down through the style to the egg

Question 11

Multicellular gameotophytes are the product of spores from

Accepted Answer

A)  anthers and stigmas. 
B)  ovules and anthers. 
C)  stigmas and sepals. 
D)  ovules and petals. 
A)  anthers and stigmas. 
B)  ovules and anthers. 
C)  stigmas and sepals. 
D)  ovules and petals.

Question 12

Which 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 13

Photosynthesis occurs in which type of plant tissue?

Accepted Answer

A)  parenchyma 
B)  vascular cambium 
C)  epidermal tissue 
D)  collenchyma 
A)  parenchyma 
B)  vascular cambium 
C)  epidermal tissue 
D)  collenchyma

Question 14

-Which structure allows exchange of gases between photosynthetic cells and the surrounding air?

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 15

Which statement is false?

Accepted Answer

A)  The ground tissue system of a leaf is called the mesophyll. 
B)  Each vein in a leaf is composed of either xylem or phloem, but not both. 
C)  The pith of a stem is often important in food storage. 
D)  Tissues that are neither dermal nor vascular are known as the ground tissue system. 
A)  The ground tissue system of a leaf is called the mesophyll. 
B)  Each vein in a leaf is composed of either xylem or phloem, but not both. 
C)  The pith of a stem is often important in food storage. 
D)  Tissues that are neither dermal nor vascular are known as the ground tissue system.

Question 16

What 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 17

Which structure is the first to emerge from the germinating seed of a eudicot such as the garden bean?

Accepted Answer

A)  the shoot hook 
B)  cotyledons 
C)  the embryonic root 
D)  the ovary 
A)  the shoot hook 
B)  cotyledons 
C)  the embryonic root 
D)  the ovary

Question 18

In which situation would plant reproduction most likely be pollinator-limited?

Accepted Answer

A)  a very large field of a single crop covering a large area 
B)  a field of wildflowers in a very cold region 
C)  a species of plant with a very long growing season 
D)  plants that produce large fruits 
A)  a very large field of a single crop covering a large area 
B)  a field of wildflowers in a very cold region 
C)  a species of plant with a very long growing season 
D)  plants that produce large fruits

Question 19

How many chromosomes are there in a maize (corn) embryo cell nucleus as compared to a maize (corn) endosperm cell nucleus?

Accepted Answer

A)  half as many 
B)  two-thirds as many 
C)  the same number 
D)  twice as many 
A)  half as many 
B)  two-thirds as many 
C)  the same number 
D)  twice as many

Question 20

Before it opens up into full blossom, the outer green layer of a rosebud consists of the leaflike

Accepted Answer

A)  sepals. 
B)  stamen. 
C)  ovary. 
D)  petals. 
A)  sepals. 
B)  stamen. 
C)  ovary. 
D)  petals.

Exam 31: Plant Structure, Growth, and Reproduction

The increase in girth associated with production of wood and bark in trees occurs as a consequence of

What is an advantage of cloning horticultural crops rather than using sexual propagation to grow them?

-Which structures ensure that too much water does not leave the leaf?

Bark consists of

This image represents monocots and eudicots. Which labeled row shows traits that are incorrectly categorized?

The chief function of root hairs is to

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

The genetically identical organisms that result from asexual reproduction are called

Monocot floral parts usually occur in multiples of

How does the sperm of an angiosperm reach the egg?

Multicellular gameotophytes are the product of spores from

Which is a function of tracheids?

Photosynthesis occurs in which type of plant tissue?

-Which structure allows exchange of gases between photosynthetic cells and the surrounding air?

Which statement is false?

What is a disadvantage of cloning as a propagation technique?

Which structure is the first to emerge from the germinating seed of a eudicot such as the garden bean?

In which situation would plant reproduction most likely be pollinator-limited?

How many chromosomes are there in a maize (corn) embryo cell nucleus as compared to a maize (corn) endosperm cell nucleus?

Before it opens up into full blossom, the outer green layer of a rosebud consists of the leaflike

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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