Question 1

Match between columns
                        Premises: attach growing plant to its support structure

Accepted Answer

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

Question 2

Which of the following wavelengths of light trigger stomatal opening?

Accepted Answer

A)  300 to 400 nm 
B)  400 to 500 nm 
C)  500 to 600 nm 
D)  600 to 700 nm 
E)  700 to 800 nm 
A)  300 to 400 nm 
B)  400 to 500 nm 
C)  500 to 600 nm 
D)  600 to 700 nm 
E)  700 to 800 nm B

Question 3

Which of the following substances may protect leaves against damage by ultraviolet radiation after abscission?

Accepted Answer

A)  Anthocyanins 
B)  Coumarins 
C)  Auxins 
D)  Coumadins 
E)  Gibberellins 
A)  Anthocyanins 
B)  Coumarins 
C)  Auxins 
D)  Coumadins 
E)  Gibberellins A

Question 4

The primary function of the spongy mesophyll is to allow which of the following processes?

Accepted Answer

A)  Gas diffusion, particularly CO2, within the leaf 
B)  Light capture 
C)  Energy production 
D)  Energy storage 
E)  Water transport 
A)  Gas diffusion, particularly CO2, within the leaf 
B)  Light capture 
C)  Energy production 
D)  Energy storage 
E)  Water transport

Question 5

The needles of pines and other conifers are adapted to:

Accepted Answer

A)  conserve water. 
B)  defend against herbivores. 
C)  reduce the effects of intense sunlight. 
D)  reduce the effects of snow and ice. 
E)  reduce the effects of wind. 
A)  conserve water. 
B)  defend against herbivores. 
C)  reduce the effects of intense sunlight. 
D)  reduce the effects of snow and ice. 
E)  reduce the effects of wind.

Question 6

Which of the following is true of monocot leaves?

Accepted Answer

A)  Many monocots have a distinct palisade layer. 
B)  Many monocots lack a petiole. 
C)  Many monocots have a distinct spongy layer. 
D)  Many monocot leaves are broad. 
E)  Many monocot leaves have netted venation. 
A)  Many monocots have a distinct palisade layer. 
B)  Many monocots lack a petiole. 
C)  Many monocots have a distinct spongy layer. 
D)  Many monocot leaves are broad. 
E)  Many monocot leaves have netted venation.

Question 7

Guttation typically occurs:

Accepted Answer

A)  at noon. 
B)  at dawn. 
C)  at dusk. 
D)  at night. 
E)  when the sun is at its peak. 
A)  at noon. 
B)  at dawn. 
C)  at dusk. 
D)  at night. 
E)  when the sun is at its peak.

Question 8

Which of the following are the only plant epidermal cells that are photosynthetic?

Accepted Answer

A)  Guard cells 
B)  Epidermal cells 
C)  Stoma 
D)  Mesophyll 
E)  Subsidiary cells 
A)  Guard cells 
B)  Epidermal cells 
C)  Stoma 
D)  Mesophyll 
E)  Subsidiary cells

Question 9

Which of the following are responsible for opening and closing the stoma?

Accepted Answer

A)  Companion cells 
B)  Cuticle cells 
C)  Cork cells 
D)  Sclerenchyma cells 
E)  Guard cells 
A)  Companion cells 
B)  Cuticle cells 
C)  Cork cells 
D)  Sclerenchyma cells 
E)  Guard cells

Question 10

Figure 34-2 ​
 
The photosynthetic ground tissue of the leaf is termed which of the following?

Accepted Answer

A)  Guard cells 
B)  Epidermal cells 
C)  Stoma 
D)  Mesophyll 
E)  Subsidiary cells 
A)  Guard cells 
B)  Epidermal cells 
C)  Stoma 
D)  Mesophyll 
E)  Subsidiary cells

Question 11

Match between columns
                        Premises: exhibit palmately netted venation

Accepted Answer

The Answer of monocots and eudicots is...

Question 12

Compound leaves have:

Accepted Answer

A)  parallel veins instead of netted veins. 
B)  alternate leaf attachment instead of opposite leaf attachment. 
C)  palmately netted leaves instead of pinnately netted leaves. 
D)  two or more leaflets instead of a single blade. 
E)  many leaves per plant instead of a single leaf per plant. 
A)  parallel veins instead of netted veins. 
B)  alternate leaf attachment instead of opposite leaf attachment. 
C)  palmately netted leaves instead of pinnately netted leaves. 
D)  two or more leaflets instead of a single blade. 
E)  many leaves per plant instead of a single leaf per plant.

Question 13

If a plant were placed in continual darkness, it would continue to open and close its stomata at approximately the same time each day. This phenomenon is governed by:

Accepted Answer

A)  annual rhythms. 
B)  floral clocks. 
C)  transpiration. 
D)  temporal mechanisms. 
E)  circadian rhythms. 
A)  annual rhythms. 
B)  floral clocks. 
C)  transpiration. 
D)  temporal mechanisms. 
E)  circadian rhythms.

Question 14

An alternate leaf arrangement is one in which there is one leaf per node.

Accepted Answer

A) True 
 B)False

Question 15

One benefit of transpiration is that it:

Accepted Answer

A)  concentrates nutrients in plant leaves. 
B)  distributes nutrients throughout the plant. 
C)  moves water from the atmosphere to the plant. 
D)  is responsible for warming plants. 
E)  brings in water from the soil. 
A)  concentrates nutrients in plant leaves. 
B)  distributes nutrients throughout the plant. 
C)  moves water from the atmosphere to the plant. 
D)  is responsible for warming plants. 
E)  brings in water from the soil.

Question 16

Modified leaves that protect meristematic tissue at the tips of woody plants are known as:

Accepted Answer

A)  bulbs. 
B)  bud scales. 
C)  spines. 
D)  tendrils. 
E)  scale scars. 
A)  bulbs. 
B)  bud scales. 
C)  spines. 
D)  tendrils. 
E)  scale scars.

Question 17

Stomata close as a result of water moving into guard cells.

Accepted Answer

A) True 
 B)False

Question 18

Parallel venation is characteristic of eudicot leaves.

Accepted Answer

A) True 
 B)False

Question 19

Match between columns
                        Premises: have a petiole

Accepted Answer

The Answer of monocots and eudicots is...

Question 20

Leaves:

Accepted Answer

A)  represent a fairly small fraction of the overall metabolic budget for a plant. 
B)  depend on the roots to supply CO2. 
C)  are the main photosynthetic organ of most plants. 
D)  are the main site of water uptake in plants. 
E)  prevent CO2 and O2 from entering the plant. 
A)  represent a fairly small fraction of the overall metabolic budget for a plant. 
B)  depend on the roots to supply CO2. 
C)  are the main photosynthetic organ of most plants. 
D)  are the main site of water uptake in plants. 
E)  prevent CO2 and O2 from entering the plant.

Exam 34: Leaf Structure and Function

Which of the following wavelengths of light trigger stomatal opening?

Which of the following substances may protect leaves against damage by ultraviolet radiation after abscission?

The primary function of the spongy mesophyll is to allow which of the following processes?

The needles of pines and other conifers are adapted to:

Which of the following is true of monocot leaves?

Guttation typically occurs:

Which of the following are the only plant epidermal cells that are photosynthetic?

Which of the following are responsible for opening and closing the stoma?

Figure 34-2 ​ The photosynthetic ground tissue of the leaf is termed which of the following?

Compound leaves have:

If a plant were placed in continual darkness, it would continue to open and close its stomata at approximately the same time each day. This phenomenon is governed by:

An alternate leaf arrangement is one in which there is one leaf per node.

One benefit of transpiration is that it:

Modified leaves that protect meristematic tissue at the tips of woody plants are known as:

Stomata close as a result of water moving into guard cells.

Parallel venation is characteristic of eudicot leaves.

Leaves:

A View of Life

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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Figure 34-2 The photosynthetic ground tissue of the leaf is termed which of the following?