Question 1

Which of the following cell types retains the ability to undergo cell division?

Accepted Answer

A) a parenchyma cell near the root tip 
B) a functional sieve tube element 
C) a tracheid 
D) a stem fiber 
A) a parenchyma cell near the root tip 
B) a functional sieve tube element 
C) a tracheid 
D) a stem fiber A

Question 2

Which of the following cells or tissues arise from lateral meristem activity?

Accepted Answer

A) secondary xylem 
B) leaves 
C) trichomes 
D) tubers 
E) cortex 
A) secondary xylem 
B) leaves 
C) trichomes 
D) tubers 
E) cortex A

Question 3

Totipotency is a term used to describe a cell's ability to give rise to a complete new organism.In plants,this means that

Accepted Answer

A) plant development is not under genetic control. 
B) the cells of shoots and the cells of roots have different genes. 
C) cell differentiation depends largely on the control of gene expression. 
D) a cell's environment has no effect on its differentiation. 
E) sexual reproduction is not necessary in plants. 
A) plant development is not under genetic control. 
B) the cells of shoots and the cells of roots have different genes. 
C) cell differentiation depends largely on the control of gene expression. 
D) a cell's environment has no effect on its differentiation. 
E) sexual reproduction is not necessary in plants. C

Question 4

Heartwood and sapwood consist of

Accepted Answer

A) bark. 
B) periderm. 
C) secondary xylem. 
D) secondary phloem. 
E) cork. 
A) bark. 
B) periderm. 
C) secondary xylem. 
D) secondary phloem. 
E) cork.

Question 5

Which of the following is a true statement?

Accepted Answer

A) Flowers may have secondary growth. 
B) Secondary growth is a common feature of eudicot leaves. 
C) Secondary growth is produced by both the vascular cambium and the cork cambium. 
D) Primary growth and secondary growth alternate in the life cycle of a plant. 
E) Plants with secondary growth are typically the smallest ones in an ecosystem. 
A) Flowers may have secondary growth. 
B) Secondary growth is a common feature of eudicot leaves. 
C) Secondary growth is produced by both the vascular cambium and the cork cambium. 
D) Primary growth and secondary growth alternate in the life cycle of a plant. 
E) Plants with secondary growth are typically the smallest ones in an ecosystem.

Question 6

Studies using Arabidopsis thaliana have led to important advances in all of the following except

Accepted Answer

A) gene mapping. 
B) impact of point mutations on gene function. 
C) gene expression during plant development. 
D) evolutionary history of plants. 
E) how genes potentially interact with other genes. 
A) gene mapping. 
B) impact of point mutations on gene function. 
C) gene expression during plant development. 
D) evolutionary history of plants. 
E) how genes potentially interact with other genes.

Question 7

Use the following figure to answer the questions below.
  
-Which of the following are true statements about the cells shown in the photograph in the figure above?

Accepted Answer

A) They are parenchyma cells. 
B) They are photosynthetic. 
C) They are usually found in roots. 
D) They are phloem cells. 
E) They are parenchyma cells and photosynthetic. 
A) They are parenchyma cells. 
B) They are photosynthetic. 
C) They are usually found in roots. 
D) They are phloem cells. 
E) They are parenchyma cells and photosynthetic.

Question 8

A person working with plants may reduce the inhibition of apical dominance by auxin via which of the following?

Accepted Answer

A) pruning shoot tips 
B) deep watering of the roots 
C) fertilizing 
D) treating the plants with auxins 
E) feeding the plants nutrients 
A) pruning shoot tips 
B) deep watering of the roots 
C) fertilizing 
D) treating the plants with auxins 
E) feeding the plants nutrients

Question 9

The driving force that pushes the root tip through the soil is primarily

Accepted Answer

A) continuous cell division in the root cap at the tip of the root. 
B) continuous cell division just behind the root cap in the centre of the apical meristem. 
C) elongation of cells behind the root apical meristem. 
D) the elongation of root hairs. 
E) continuous cell division of root cap cells. 
A) continuous cell division in the root cap at the tip of the root. 
B) continuous cell division just behind the root cap in the centre of the apical meristem. 
C) elongation of cells behind the root apical meristem. 
D) the elongation of root hairs. 
E) continuous cell division of root cap cells.

Question 10

A plant has the following characteristics: a taproot system,several growth rings evident in a cross section of the stem,and a layer of bark around the outside.Which of the following best describes the plant?

Accepted Answer

A) herbaceous eudicot 
B) woody eudicot 
C) woody monocot 
D) herbaceous monocot 
E) woody annual 
A) herbaceous eudicot 
B) woody eudicot 
C) woody monocot 
D) herbaceous monocot 
E) woody annual

Question 11

The polarity of a plant is established when

Accepted Answer

A) the zygote divides. 
B) cotyledons form at the shoot end of the embryo. 
C) the shoot-root axis is established in the embryo. 
D) the primary root breaks through the seed coat. 
E) the shoot first breaks through the soil into the light as the seed germinates. 
A) the zygote divides. 
B) cotyledons form at the shoot end of the embryo. 
C) the shoot-root axis is established in the embryo. 
D) the primary root breaks through the seed coat. 
E) the shoot first breaks through the soil into the light as the seed germinates.

Question 12

A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls.The cells have numerous chloroplasts.What type of cells are they?

Accepted Answer

A) parenchyma 
B) xylem 
C) endodermis 
D) collenchyma 
E) sclerenchyma 
A) parenchyma 
B) xylem 
C) endodermis 
D) collenchyma 
E) sclerenchyma

Question 13

The following questions are based on the drawing of root or stem cross sections shown below.
  
-A monocot stem is represented by

Accepted Answer

A) I only. 
B) II only. 
C) III only. 
D) IV only. 
E) both I and III. 
A) I only. 
B) II only. 
C) III only. 
D) IV only. 
E) both I and III.

Question 14

Which of the following have unevenly thickened primary walls that support young,growing parts of the plant?

Accepted Answer

A) parenchyma cells 
B) collenchyma cells 
C) sclerenchyma cells 
D) tracheids and vessel elements 
E) sieve-tube elements 
A) parenchyma cells 
B) collenchyma cells 
C) sclerenchyma cells 
D) tracheids and vessel elements 
E) sieve-tube elements

Question 15

Gas exchange,which is necessary for photosynthesis,can occur most easily in which leaf tissue?

Accepted Answer

A) epidermis 
B) palisade mesophyll 
C) spongy mesophyll 
D) vascular tissue 
E) bundle sheath 
A) epidermis 
B) palisade mesophyll 
C) spongy mesophyll 
D) vascular tissue 
E) bundle sheath

Question 16

Suppose George Washington completely removed the bark from around the base of a cherry tree but was stopped by his father before cutting the tree down.The leaves retained their normal appearance for several weeks,but the tree eventually died.The tissue(s)that George left functional was/were the

Accepted Answer

A) phloem. 
B) xylem. 
C) cork cambium. 
D) cortex. 
E) companion and sieve-tube members. 
A) phloem. 
B) xylem. 
C) cork cambium. 
D) cortex. 
E) companion and sieve-tube members.

Question 17

Which structure is incorrectly paired with its tissue system?

Accepted Answer

A) root hair-dermal tissue 
B) palisade parenchyma-ground tissue 
C) guard cell-dermal tissue 
D) companion cell-ground tissue 
E) tracheid-vascular tissue 
A) root hair-dermal tissue 
B) palisade parenchyma-ground tissue 
C) guard cell-dermal tissue 
D) companion cell-ground tissue 
E) tracheid-vascular tissue

Question 18

The vascular bundle in the shape of a single central cylinder in a root is called the

Accepted Answer

A) cortex. 
B) stele. 
C) endodermis. 
D) periderm. 
E) pith. 
A) cortex. 
B) stele. 
C) endodermis. 
D) periderm. 
E) pith.

Question 19

According to the ABC model of floral development,which genes would be expressed in a showy ornamental flower with multiple sepals and petals but no stamens or carpels?

Accepted Answer

A) A genes only 
B) B genes only 
C) C genes only 
D) A and B genes only 
E) A and C genes only 
A) A genes only 
B) B genes only 
C) C genes only 
D) A and B genes only 
E) A and C genes only

Question 20

A mutation allows only A gene activity in a developing flower.Which flower part(s)will develop in this plant?

Accepted Answer

A) sepals 
B) petals 
C) stamens 
D) carpels 
E) both sepals and petals 
A) sepals 
B) petals 
C) stamens 
D) carpels 
E) both sepals and petals

Exam 35: Plant Structure,Growth,and Development

Which of the following cell types retains the ability to undergo cell division?

Which of the following cells or tissues arise from lateral meristem activity?

Totipotency is a term used to describe a cell's ability to give rise to a complete new organism.In plants,this means that

Heartwood and sapwood consist of

Which of the following is a true statement?

Studies using Arabidopsis thaliana have led to important advances in all of the following except

Use the following figure to answer the questions below. -Which of the following are true statements about the cells shown in the photograph in the figure above?

A person working with plants may reduce the inhibition of apical dominance by auxin via which of the following?

The driving force that pushes the root tip through the soil is primarily

A plant has the following characteristics: a taproot system,several growth rings evident in a cross section of the stem,and a layer of bark around the outside.Which of the following best describes the plant?

The polarity of a plant is established when

A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls.The cells have numerous chloroplasts.What type of cells are they?

The following questions are based on the drawing of root or stem cross sections shown below. -A monocot stem is represented by

Which of the following have unevenly thickened primary walls that support young,growing parts of the plant?

Gas exchange,which is necessary for photosynthesis,can occur most easily in which leaf tissue?

Suppose George Washington completely removed the bark from around the base of a cherry tree but was stopped by his father before cutting the tree down.The leaves retained their normal appearance for several weeks,but the tree eventually died.The tissue(s)that George left functional was/were the

Which structure is incorrectly paired with its tissue system?

The vascular bundle in the shape of a single central cylinder in a root is called the

According to the ABC model of floral development,which genes would be expressed in a showy ornamental flower with multiple sepals and petals but no stamens or carpels?

A mutation allows only A gene activity in a developing flower.Which flower part(s)will develop in this plant?

Introduction: Evolution and Themes of Biology

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Regulation of Gene Expression

Viruses

DNA Tools and Biotechnology

Genomes and Their Evolution

Descent with Modification: A Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity II: The Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons,Synapses,and Signalling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behaviour

An Introduction to Ecology and the Biosphere

Population Ecology

Community Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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