Question 1

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

Accepted Answer

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

Question 2

Under the influence of hormones, branch roots emerge from the ________ of a growing root.

Accepted Answer

A) endodermis 
B) pericycle 
C) central cylinder 
D) epidermis 
E) Casparian strip 
A) endodermis 
B) pericycle 
C) central cylinder 
D) epidermis 
E) Casparian strip

Question 3

Water flows upward in some xylem tubes and downward in others. True or False?

Accepted Answer

A) True 
 B)False

Question 4

Tree roots are a ________ of sugars in spring and a ________ in the fall.

Accepted Answer

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

Question 5

Plants control the opening of stomata by actively transporting ________ into and out of the guard cells.

Accepted Answer

The answer of Plants control the opening of stomata by...

Question 6

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

Accepted Answer

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

Question 7

You discover several woody bushes growing in your yard. Is it safe to assume that they are perennials? Why or why not?

Accepted Answer

Yes; woody secondary

Question 8

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

Accepted Answer

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

Question 9

What cellular feature allows a mineral such as manganese to diffuse from cell to cell after being taken up by roots?

Accepted Answer

A) plasmodesmata 
B) secondary cell walls 
C) sieve plates 
D) microtubules 
E) microfilaments 
A) plasmodesmata 
B) secondary cell walls 
C) sieve plates 
D) microtubules 
E) microfilaments

Question 10

Which of these tissues is between the epidermis and the vascular bundle in a young dicot stem?

Accepted Answer

A) pith 
B) xylem 
C) cortex 
D) phloem 
E) ground tissue 
A) pith 
B) xylem 
C) cortex 
D) phloem 
E) ground tissue

Question 11

Which of these plant cells is alive but has no nucleus?

Accepted Answer

A) companion cell 
B) parenchyma 
C) sieve-tube element 
D) vessel element 
E) collenchyma 
A) companion cell 
B) parenchyma 
C) sieve-tube element 
D) vessel element 
E) collenchyma

Question 12

An onion bulb is made up of ________ that are specially adapted for food storage.

Accepted Answer

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

Question 13

When potassium ion is transported into guard cells, water:

Accepted Answer

A) is actively transported out of the cells. 
B) is actively transported into the cells. 
C) leaves by osmosis. 
D) enters by osmosis. 
E) moves to the edge of the cell. 
A) is actively transported out of the cells. 
B) is actively transported into the cells. 
C) leaves by osmosis. 
D) enters by osmosis. 
E) moves to the edge of the cell.

Question 14

Dermal tissue forms:

Accepted Answer

A) vascular tissue. 
B) pith. 
C) xylem. 
D) epidermis. 
E) seeds. 
A) vascular tissue. 
B) pith. 
C) xylem. 
D) epidermis. 
E) seeds.

Question 15

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

Accepted Answer

A) parenchyma. 
B) sclerenchyma. 
C) phloem. 
D) collenchyma. 
E) vessel members. 
A) parenchyma. 
B) sclerenchyma. 
C) phloem. 
D) collenchyma. 
E) vessel members.

Question 16

All the following are TRUE of xylem EXCEPT:

Accepted Answer

A) tracheids and vessel elements are the two types of cells that form xylem. 
B) water and minerals are transported through xylem. 
C) companion cells provide nutrition for tracheids. 
D) tracheids contain pits. 
E) at maturity xylem is dead. 
A) tracheids and vessel elements are the two types of cells that form xylem. 
B) water and minerals are transported through xylem. 
C) companion cells provide nutrition for tracheids. 
D) tracheids contain pits. 
E) at maturity xylem is dead.

Question 17

Ground tissue is found in the primary plant only (never in the secondary plant). True or False?

Accepted Answer

A) True 
 B)False

Question 18

The concentration of nutrients in plants is approximately the same as the concentration of nutrients in the surrounding soil. True or False?

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

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

Question 20

Thin-walled, metabolically active cells of parenchyma typically form:

Accepted Answer

A) phloem. 
B) xylem. 
C) cork. 
D) ground tissue. 
E) epidermis. 
A) phloem. 
B) xylem. 
C) cork. 
D) ground tissue. 
E) epidermis.

Exam 43: Plant Anatomy and Nutrient Transport

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

Under the influence of hormones, branch roots emerge from the ________ of a growing root.

Water flows upward in some xylem tubes and downward in others. True or False?

Tree roots are a ________ of sugars in spring and a ________ in the fall.

Plants control the opening of stomata by actively transporting ________ into and out of the guard cells.

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

You discover several woody bushes growing in your yard. Is it safe to assume that they are perennials? Why or why not?

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

What cellular feature allows a mineral such as manganese to diffuse from cell to cell after being taken up by roots?

Which of these tissues is between the epidermis and the vascular bundle in a young dicot stem?

Which of these plant cells is alive but has no nucleus?

An onion bulb is made up of ________ that are specially adapted for food storage.

When potassium ion is transported into guard cells, water:

Dermal tissue forms:

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

All the following are TRUE of xylem EXCEPT:

Ground tissue is found in the primary plant only (never in the secondary plant). True or False?

The concentration of nutrients in plants is approximately the same as the concentration of nutrients in the surrounding soil. True or False?

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

Thin-walled, metabolically active cells of parenchyma typically form:

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 Reproduction and Development

Plant Responses to the Environment

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Tree roots are a of sugars in spring and a in the fall.