Question 1

The new root cells will be generated in the

Accepted Answer

A) zone of elongation. 
B) zone of cell division. 
C) root cap. 
D) zone of differentiation. 
A) zone of elongation. 
B) zone of cell division. 
C) root cap. 
D) zone of differentiation.

Question 2

Root hairs,which absorb the water and minerals in the majority of plants,are the extensions of root

Accepted Answer

A) collenchyma tissue. 
B) pericycle. 
C) endodermis. 
D) epidermal cells. 
E) parenchyma. 
A) collenchyma tissue. 
B) pericycle. 
C) endodermis. 
D) epidermal cells. 
E) parenchyma.

Question 3

The vascular rays,made of parenchyma,connect the

Accepted Answer

A) primary xylem and pericycle. 
B) secondary xylem and phloem. 
C) primary xylem and phloem. 
D) primary xylem and secondary phloem. 
E) pericycle and secondary xylem. 
A) primary xylem and pericycle. 
B) secondary xylem and phloem. 
C) primary xylem and phloem. 
D) primary xylem and secondary phloem. 
E) pericycle and secondary xylem.

Question 4

The innermost layer of the root cortex is the

Accepted Answer

A) core. 
B) pericycle. 
C) endodermis. 
D) pith. 
A) core. 
B) pericycle. 
C) endodermis. 
D) pith.

Question 5

The bark of woody plants represents all tissues external to the

Accepted Answer

A) cortex. 
B) vascular cambium. 
C) endodermis. 
D) pith. 
E) pericycle. 
A) cortex. 
B) vascular cambium. 
C) endodermis. 
D) pith. 
E) pericycle.

Question 6

Which of the following plant organs is an evolutionary adaptation of a leaf that stores food?

Accepted Answer

A) tuber 
B) pneumatophore 
C) rhizome 
D) bulb 
E) tendril 
A) tuber 
B) pneumatophore 
C) rhizome 
D) bulb 
E) tendril

Question 7

Which of the following statements about growth in plants is true?

Accepted Answer

A) Primary growth is localized at meristems,whereas secondary growth is localized at buds. 
B) Some plants lack secondary growth. 
C) Secondary growth occurs only in stems. 
D) Reproductive structures are produced by secondary growth. 
E) Monocots have only primary growth,and eudicots have only secondary growth. 
A) Primary growth is localized at meristems,whereas secondary growth is localized at buds. 
B) Some plants lack secondary growth. 
C) Secondary growth occurs only in stems. 
D) Reproductive structures are produced by secondary growth. 
E) Monocots have only primary growth,and eudicots have only secondary growth.

Question 8

Figure 28.2
-A monocot stem is represented in Figure 28.2 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 9

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

Accepted Answer

A) a sclereid 
B) a parenchyma cell 2 mm from the tip of a root 
C) a functional sieve-tube element 
D) a tracheid 
E) a stem fiber 
A) a sclereid 
B) a parenchyma cell 2 mm from the tip of a root 
C) a functional sieve-tube element 
D) a tracheid 
E) a stem fiber

Question 10

Which plant pollen grain has one opening?

Accepted Answer

A) magnolia 
B) rice 
C) rose 
D) peanut 
E) cashew 
A) magnolia 
B) rice 
C) rose 
D) peanut 
E) cashew

Question 11

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 12

Imagine you are in an introductory biology laboratory observing the cross section of a primary dicot stem.The diameter of vascular bundle was 200 µm.Your instructor asked you to convert the diameter of the vascular bundle into mm.Which of the following is the correct response?

Accepted Answer

A) 20 
B) 2 
C) 0.2 
D) 0.02 
E) 0.002 
A) 20 
B) 2 
C) 0.2 
D) 0.02 
E) 0.002

Question 13

The characteristic feature of typical collenchyma tissue is

Accepted Answer

A) a thick cell wall. 
B) large intercellular space. 
C) lignin filled intercellular spaces. 
D) inability to divide. 
E) transportation. 
A) a thick cell wall. 
B) large intercellular space. 
C) lignin filled intercellular spaces. 
D) inability to divide. 
E) transportation.

Question 14

Which of the following tissues played a very critical role in the process of evolution to produce the great biodiversity of flowering plant species?

Accepted Answer

A) lateral meristem 
B) apical meristem 
C) mesophyll 
D) endodermis 
E) xylem and phloem 
A) lateral meristem 
B) apical meristem 
C) mesophyll 
D) endodermis 
E) xylem and phloem

Question 15

CO2 enters the inner spaces of the leaf through the

Accepted Answer

A) cuticle. 
B) epidermal trichomes. 
C) stoma. 
D) phloem. 
E) walls of guard cells. 
A) cuticle. 
B) epidermal trichomes. 
C) stoma. 
D) phloem. 
E) walls of guard cells.

Question 16

An association between the roots of a terrestrial plant with soil fungus is referred to as

Accepted Answer

A) parasitism. 
B) symbiosis. 
C) autotrophism. 
D) heterotrophism. 
E) saprobism. 
A) parasitism. 
B) symbiosis. 
C) autotrophism. 
D) heterotrophism. 
E) saprobism.

Question 17

Guard cells of stomata in leaves of plants are modified

Accepted Answer

A) mesophyll cells. 
B) epidermal cells. 
C) palisade mesophyll cells. 
D) sclerenchyma cells. 
E) collenchyma cells. 
A) mesophyll cells. 
B) epidermal cells. 
C) palisade mesophyll cells. 
D) sclerenchyma cells. 
E) collenchyma cells.

Question 18

Lateral branches,thorns,or flowers on the shoot and vertical roots on the rhizome produce from the

Accepted Answer

A) apical bud. 
B) internode. 
C) node. 
D) axillary bud. 
E) petiole. 
A) apical bud. 
B) internode. 
C) node. 
D) axillary bud. 
E) petiole.

Question 19

________ is to xylem as ________ is to phloem.

Accepted Answer

A) Sclerenchyma cell;collenchyma cell 
B) Apical meristem;vascular cambium 
C) Vessel element;sieve-tube member 
D) Cortex;pith 
E) Vascular cambium;cork cambium 
A) Sclerenchyma cell;collenchyma cell 
B) Apical meristem;vascular cambium 
C) Vessel element;sieve-tube member 
D) Cortex;pith 
E) Vascular cambium;cork cambium

Question 20

The activation or inactivation of specific genes during cell differentiation depends largely on

Accepted Answer

A) cell division. 
B) cell-to-cell communication. 
C) cell structure. 
D) cell function 
A) cell division. 
B) cell-to-cell communication. 
C) cell structure. 
D) cell function

Exam 28: Plant Structure and Growth

The new root cells will be generated in the

Root hairs,which absorb the water and minerals in the majority of plants,are the extensions of root

The vascular rays,made of parenchyma,connect the

The innermost layer of the root cortex is the

The bark of woody plants represents all tissues external to the

Which of the following plant organs is an evolutionary adaptation of a leaf that stores food?

Which of the following statements about growth in plants is true?

Figure 28.2 -A monocot stem is represented in Figure 28.2 by

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

Which plant pollen grain has one opening?

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

Imagine you are in an introductory biology laboratory observing the cross section of a primary dicot stem.The diameter of vascular bundle was 200 µm.Your instructor asked you to convert the diameter of the vascular bundle into mm.Which of the following is the correct response?

The characteristic feature of typical collenchyma tissue is

Which of the following tissues played a very critical role in the process of evolution to produce the great biodiversity of flowering plant species?

CO2 enters the inner spaces of the leaf through the

An association between the roots of a terrestrial plant with soil fungus is referred to as

Guard cells of stomata in leaves of plants are modified

Lateral branches,thorns,or flowers on the shoot and vertical roots on the rhizome produce from the

________ is to xylem as ________ is to phloem.

The activation or inactivation of specific genes during cell differentiation depends largely on

Introduction: Evolution and the Foundations of Biology

The Chemical Context of Life

Carbon and the Molecular Diversity of Life

A Tour of the Cell

Membrane Transport and Cell Signaling

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Development,stem Cells,and Cancer

Viruses

Genomes and Their Evolution

Descent With Modification

Phylogeny

The Evolution of Populations

The Origin of Species

Broad Patterns of Evolution

Early Life and the Diversification of Prokaryotes

The Origin and Diversification of Eukaryotes

The Colonization of Land by Plants and Fungi

The Rise of Animal Diversity

Resource Acquisition,nutrition,and Transport in Vascular Plants

Reproduction and Domestication of Flowering Plants

Plant Responses to Internal and External Signals

Homeostasis and Endocrine Signaling

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Reproduction and Development

Neurons,synapses,and Signaling

Nervous and Sensory Systems

Motor Mechanisms and Behavior

Population Ecology and the Distribution of Organisms

Ecological Communities

Ecosystems and Energy

Conservation Biology and Global Change

Filters

CO₂ enters the inner spaces of the leaf through the

is to xylem as is to phloem.