Question 1

Root hairs develop from the

Accepted Answer

A)  endodermis. 
B)  epidermis. 
C)  pericycle. 
D)  Casparian strip. 
E)  cortex. 
A)  endodermis. 
B)  epidermis. 
C)  pericycle. 
D)  Casparian strip. 
E)  cortex.

Question 2

With regard to the cohesion- tension mechanism, "cohesion" refers to the

Accepted Answer

A)  evaporation of water from the stomata of the leaf. 
B)  attraction of water molecules for one another. 
C)  tendency of water molecules to be attracted to minerals in the water. 
D)  process of osmosis that pulls water into the root. 
E)  use of water in photosynthesis, resulting in a shortage of water in the leaf. 
A)  evaporation of water from the stomata of the leaf. 
B)  attraction of water molecules for one another. 
C)  tendency of water molecules to be attracted to minerals in the water. 
D)  process of osmosis that pulls water into the root. 
E)  use of water in photosynthesis, resulting in a shortage of water in the leaf.

Question 3

An onion bulb is made up of _ that are specially adapted for food and water storage.

Accepted Answer

A)  roots 
B)  stems 
C)  leaves 
D)  flowers 
E)  branches 
A)  roots 
B)  stems 
C)  leaves 
D)  flowers 
E)  branches

Question 4

An opening in the epidermis of the leaf through which water evaporates is called a

Accepted Answer

A)  plasmodesmata. 
B)  sieve plate. 
C)  guard cell. 
D)  pit. 
E)  stoma. 
A)  plasmodesmata. 
B)  sieve plate. 
C)  guard cell. 
D)  pit. 
E)  stoma.

Question 5

What type of cell activity occurs in the meristem regions of plants?

Accepted Answer

A)  Mitosis 
B)  Storage of sugar 
C)  Secondary growth 
D)  Photosynthesis 
E)  Increased water uptake of cells 
A)  Mitosis 
B)  Storage of sugar 
C)  Secondary growth 
D)  Photosynthesis 
E)  Increased water uptake of cells

Question 6

Water and minerals are mainly absorbed from the soil through the

Accepted Answer

A)  pericycle. 
B)  root cap. 
C)  apical meristem. 
D)  root hairs. 
E)  epidermis of large woody roots. 
A)  pericycle. 
B)  root cap. 
C)  apical meristem. 
D)  root hairs. 
E)  epidermis of large woody roots.

Question 7

Diffusion doesn't require energy. Why do plants expend energy to actively transport minerals into root hairs?

Accepted Answer

A)  Mineral concentrations in the soil are too low for diffusion. 
B)  Minerals are too large for diffusion. 
C)  Minerals are strongly attracted to soil particles. 
D)  Mineral concentrations in the soil are too high for diffusion. 
A)  Mineral concentrations in the soil are too low for diffusion. 
B)  Minerals are too large for diffusion. 
C)  Minerals are strongly attracted to soil particles. 
D)  Mineral concentrations in the soil are too high for diffusion.

Question 8

Which of the following is the correct order of the tissues in a young dicot stem, from the center of the stem outward?

Accepted Answer

A)  Cortex -vascular cambium -xylem -phloem -epidermis -pith 
B)  Pith -xylem -vascular cambium -phloem -cortex -epidermis 
C)  Pith -phloem -cortex -xylem -vascular cambium -epidermis 
D)  Cortex -xylem -vascular cambium -phloem -pith -epidermis 
E)  Pith -cortex -phloem -xylem -vascular cambium -epidermis 
A)  Cortex -vascular cambium -xylem -phloem -epidermis -pith 
B)  Pith -xylem -vascular cambium -phloem -cortex -epidermis 
C)  Pith -phloem -cortex -xylem -vascular cambium -epidermis 
D)  Cortex -xylem -vascular cambium -phloem -pith -epidermis 
E)  Pith -cortex -phloem -xylem -vascular cambium -epidermis

Question 9

Water loss through the stomata of leaves is called

Accepted Answer

A)  bulk flow. 
B)  translocation. 
C)  transpiration. 
D)  osmosis. 
E)  guttation. 
A)  bulk flow. 
B)  translocation. 
C)  transpiration. 
D)  osmosis. 
E)  guttation.

Question 10

Cells that are alive, have thickened cell walls, and support the plant body are

Accepted Answer

A)  parenchyma cells. 
B)  tracheids. 
C)  vessel elements. 
D)  collenchyma cells. 
E)  sclerenchyma cells. 
A)  parenchyma cells. 
B)  tracheids. 
C)  vessel elements. 
D)  collenchyma cells. 
E)  sclerenchyma cells.

Question 11

As a 7- year- old child, you helped your father nail a birdhouse 7 feet high on a 10- foot- tall maple tree. If the tree grew an average of 12 inches per year, except during a dry year when it grew only 2 inches, how high in the tree is the birdhouse when you are 18 years old?

Accepted Answer

A)  17 feet, 2 inches 
B)  10 feet 
C)  7 feet 
D)  17 feet 
E)  19 feet 
A)  17 feet, 2 inches 
B)  10 feet 
C)  7 feet 
D)  17 feet 
E)  19 feet

Question 12

All of the following are major functions of roots EXCEPT

Accepted Answer

A)  storing excess sugars. 
B)  carrying out photosynthesis. 
C)  producing hormones. 
D)  transporting water and minerals. 
E)  interacting with soil fungi. 
A)  storing excess sugars. 
B)  carrying out photosynthesis. 
C)  producing hormones. 
D)  transporting water and minerals. 
E)  interacting with soil fungi.

Question 13

In the spring, when stored starches convert back to sugars and move from the root of a plant to the developing buds, the root is the sugar and the bud is the sugar _.

Accepted Answer

The answer of In the spring, when stored starches convert...

Question 14

In summer, when plant roots are converting sugar to store as starch, the root is the sugar _ and the leaves are the sugar .

Accepted Answer

A)  source; source 
B)  sink; sink 
C)  source; sink 
D)  sink; source or sink 
E)  sink; source 
A)  source; source 
B)  sink; sink 
C)  source; sink 
D)  sink; source or sink 
E)  sink; source

Question 15

If a tree's heartwood rots out, the tree will

Accepted Answer

A)  not survive because the active xylem is destroyed. 
B)  be weaker than normal and more likely to blow over in a storm. 
C)  replace the heartwood with sapwood to compensate for the damaged tissue. 
D)  not survive because the active phloem is destroyed. 
A)  not survive because the active xylem is destroyed. 
B)  be weaker than normal and more likely to blow over in a storm. 
C)  replace the heartwood with sapwood to compensate for the damaged tissue. 
D)  not survive because the active phloem is destroyed.

Question 16

You discover a plant that has unusual fruit around the seed and leaves with parallel veins. In which of the two major groups of flowering plants does it belong, and why?

Accepted Answer

A)  Monocots, because it has parallel veins 
B)  Either monocot or dicot, depending on the presence or absence of flowers 
C)  Neither monocot nor dicot, because it has fruits 
D)  Dicots, because it has fruit around the seed 
A)  Monocots, because it has parallel veins 
B)  Either monocot or dicot, depending on the presence or absence of flowers 
C)  Neither monocot nor dicot, because it has fruits 
D)  Dicots, because it has fruit around the seed

Question 17

Many root epidermal cells grow projections called , which extend from their surface and help in the absorption of water and minerals.

Accepted Answer

A)  villi 
B)  rhizoids 
C)  cilia 
D)  root hairs 
E)  rhizomes 
A)  villi 
B)  rhizoids 
C)  cilia 
D)  root hairs 
E)  rhizomes

Question 18

Parenchyma cells are located in all of the following structures EXCEPT the

Accepted Answer

A)  cortex. 
B)  cuticle. 
C)  mesophyll. 
D)  pith. 
E)  vascular tissues. 
A)  cortex. 
B)  cuticle. 
C)  mesophyll. 
D)  pith. 
E)  vascular tissues.

Question 19

Which of the following bonds explains the cohesion of water molecules in the cohesion- tension mechanism?

Accepted Answer

A)  Disulfide 
B)  Covalent 
C)  Peptide 
D)  Ionic 
E)  Hydrogen 
A)  Disulfide 
B)  Covalent 
C)  Peptide 
D)  Ionic 
E)  Hydrogen

Question 20

All of the following are part of a plant's shoot system EXCEPT

Accepted Answer

A)  mycorrhizae. 
B)  stem. 
C)  buds. 
D)  flowers. 
E)  leaves. 
A)  mycorrhizae. 
B)  stem. 
C)  buds. 
D)  flowers. 
E)  leaves.

Exam 44: Plant Anatomy and Nutrient Transport

Root hairs develop from the

With regard to the cohesion- tension mechanism, "cohesion" refers to the

An onion bulb is made up of _ that are specially adapted for food and water storage.

An opening in the epidermis of the leaf through which water evaporates is called a

What type of cell activity occurs in the meristem regions of plants?

Water and minerals are mainly absorbed from the soil through the

Diffusion doesn't require energy. Why do plants expend energy to actively transport minerals into root hairs?

Which of the following is the correct order of the tissues in a young dicot stem, from the center of the stem outward?

Water loss through the stomata of leaves is called

Cells that are alive, have thickened cell walls, and support the plant body are

As a 7- year- old child, you helped your father nail a birdhouse 7 feet high on a 10- foot- tall maple tree. If the tree grew an average of 12 inches per year, except during a dry year when it grew only 2 inches, how high in the tree is the birdhouse when you are 18 years old?

All of the following are major functions of roots EXCEPT

In the spring, when stored starches convert back to sugars and move from the root of a plant to the developing buds, the root is the sugar and the bud is the sugar _.

In summer, when plant roots are converting sugar to store as starch, the root is the sugar _ and the leaves are the sugar .

If a tree's heartwood rots out, the tree will

You discover a plant that has unusual fruit around the seed and leaves with parallel veins. In which of the two major groups of flowering plants does it belong, and why?

Many root epidermal cells grow projections called , which extend from their surface and help in the absorption of water and minerals.

Parenchyma cells are located in all of the following structures EXCEPT the

Which of the following bonds explains the cohesion of water molecules in the cohesion- tension mechanism?

All of the following are part of a plant's shoot system EXCEPT

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 Reproduction and Development

Plant Responses to the Environment

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