Question 1

Which statement describes the leaf epidermis?

Accepted Answer

A)  Its cells lack chloroplasts. 
B)  Some of its cells perform photosynthesis. 
C)  Its cell walls are thin. 
D)  Its cells are opaque. 
E)  It has only a single layer. 
A)  Its cells lack chloroplasts. 
B)  Some of its cells perform photosynthesis. 
C)  Its cell walls are thin. 
D)  Its cells are opaque. 
E)  It has only a single layer.

Question 2

Excess transpiration:

Accepted Answer

A)  may be harmful to a plant. 
B)  causes an increase in turgor pressure. 
C)  is a synonym for precipitation. 
D)  occurs mainly in the winter. 
E)  is automatically counteracted by absorbing water from the soil. 
A)  may be harmful to a plant. 
B)  causes an increase in turgor pressure. 
C)  is a synonym for precipitation. 
D)  occurs mainly in the winter. 
E)  is automatically counteracted by absorbing water from the soil.

Question 3

Leaf abscission:

Accepted Answer

A)  occurs as a response to increased temperatures in temperate climates. 
B)  occurs as a response to dry conditions in tropical climates. 
C)  involves the formation of a tendril at the base of the petiole. 
D)  occurs year-round on deciduous plants. 
E)  does not occur in conifers. 
A)  occurs as a response to increased temperatures in temperate climates. 
B)  occurs as a response to dry conditions in tropical climates. 
C)  involves the formation of a tendril at the base of the petiole. 
D)  occurs year-round on deciduous plants. 
E)  does not occur in conifers.

Question 4

Photosynthesis reduces the leaf's internal concentration of:

Accepted Answer

A)  hydrogen. 
B)  carbon dioxide. 
C)  nitrogen. 
D)  oxygen. 
E)  sugars and starches. 
A)  hydrogen. 
B)  carbon dioxide. 
C)  nitrogen. 
D)  oxygen. 
E)  sugars and starches.

Question 5

Match between columns
                        Premises: stores food or water

Accepted Answer

The Answer of bud scales and tendrils and spines and is...

Question 6

Which of the following have tendrils that are specialized stems (NOT specialized leaves)?

Accepted Answer

A)  Peas 
B)  Cucumbers 
C)  Squash 
D)  Sweet peas 
E)  Ivy 
A)  Peas 
B)  Cucumbers 
C)  Squash 
D)  Sweet peas 
E)  Ivy

Question 7

The area of the angle between the stem and the petiole is referred to as the:

Accepted Answer

A)  axil. 
B)  blade. 
C)  petiole. 
D)  stipule. 
E)  trichome. 
A)  axil. 
B)  blade. 
C)  petiole. 
D)  stipule. 
E)  trichome.

Question 8

Floating leaves of aquatic plants have:

Accepted Answer

A)  stomata only on the lower epidermis. 
B)  stomata only on the upper epidermis. 
C)  stomata on both the lower and the upper epidermis. 
D)  no stomata on the epidermis. 
E)  stomata only within the mesophyll. 
A)  stomata only on the lower epidermis. 
B)  stomata only on the upper epidermis. 
C)  stomata on both the lower and the upper epidermis. 
D)  no stomata on the epidermis. 
E)  stomata only within the mesophyll.

Question 9

Match between columns
                        Premises: exhibit parallel venation

Accepted Answer

The Answer of monocots and eudicots is...

Question 10

Guttation is the process most responsible for moving water and minerals through the plant.

Accepted Answer

A) True 
 B)False

Question 11

A spine is a modified branch.

Accepted Answer

A) True 
 B)False

Question 12

Stomata are:

Accepted Answer

A)  waxy layers that cover leaves. 
B)  openings in the leaf epidermis. 
C)  extensions of bundle sheaths. 
D)  particularly numerous on the upper epidermis. 
E)  guarded by two stipule cells. 
A)  waxy layers that cover leaves. 
B)  openings in the leaf epidermis. 
C)  extensions of bundle sheaths. 
D)  particularly numerous on the upper epidermis. 
E)  guarded by two stipule cells.

Question 13

Photosynthesis occurs mainly in the leaf's:

Accepted Answer

A)  subsidiary cells. 
B)  bundle sheath extensions. 
C)  palisade mesophyll. 
D)  trichomes. 
E)  vascular bundles. 
A)  subsidiary cells. 
B)  bundle sheath extensions. 
C)  palisade mesophyll. 
D)  trichomes. 
E)  vascular bundles.

Question 14

Transpiration increases at lower temperatures.

Accepted Answer

A) True 
 B)False

Question 15

The process of photosynthesis involves the conversion of:

Accepted Answer

A)  oxygen and water into sugar. 
B)  sugar into starches and cellulose. 
C)  oxygen and sugar into water. 
D)  carbon dioxide and water into sugar. 
E)  sugar and water into lipids. 
A)  oxygen and water into sugar. 
B)  sugar into starches and cellulose. 
C)  oxygen and sugar into water. 
D)  carbon dioxide and water into sugar. 
E)  sugar and water into lipids.

Question 16

Match between columns
                        Premises: leaf forms a sheath at the leaf base

Accepted Answer

The Answer of eudicots and monocots is...

Question 17

Explain how the structure of a leaf contributes to the function of photosynthesis.

Accepted Answer

Concepts to Consider: Epidermis-transpar

Question 18

The process by which water is lost by evaporation from aerial plant parts is known as:

Accepted Answer

A)  vaporization. 
B)  photosynthesis. 
C)  guttation. 
D)  transpiration. 
E)  abscission. 
A)  vaporization. 
B)  photosynthesis. 
C)  guttation. 
D)  transpiration. 
E)  abscission.

Question 19

Trichomes on plants are responsible for:

Accepted Answer

A)  preventing water absorption on leaf surfaces. 
B)  deterring herbivores. 
C)  absorbing salts absorbed from the air. 
D)  the waxy structures on the petiole. 
E)  facilitating gas exchange. 
A)  preventing water absorption on leaf surfaces. 
B)  deterring herbivores. 
C)  absorbing salts absorbed from the air. 
D)  the waxy structures on the petiole. 
E)  facilitating gas exchange.

Question 20

Which structure or structures function to open and close the stomata?

Accepted Answer

A)  Cuticle 
B)  Mesophyll 
C)  Palisade cells 
D)  Guard cells 
E)  Chloroplasts 
A)  Cuticle 
B)  Mesophyll 
C)  Palisade cells 
D)  Guard cells 
E)  Chloroplasts

Exam 34: Leaf Structure and Function

Which statement describes the leaf epidermis?

Excess transpiration:

Leaf abscission:

Photosynthesis reduces the leaf's internal concentration of:

Which of the following have tendrils that are specialized stems (NOT specialized leaves)?

The area of the angle between the stem and the petiole is referred to as the:

Floating leaves of aquatic plants have:

Guttation is the process most responsible for moving water and minerals through the plant.

A spine is a modified branch.

Stomata are:

Photosynthesis occurs mainly in the leaf's:

Transpiration increases at lower temperatures.

The process of photosynthesis involves the conversion of:

Explain how the structure of a leaf contributes to the function of photosynthesis.

The process by which water is lost by evaporation from aerial plant parts is known as:

Trichomes on plants are responsible for:

Which structure or structures function to open and close the stomata?

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Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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