Question 1

Sclereids are sclerenchyma cells that are generally long and slender.

Accepted Answer

A) True 
 B)False

Question 2

The walls of epidermal cells on the aerial parts of the plant are covered with a waxy cuticle.

Accepted Answer

A) True 
 B)False

Question 3

One role of pit membranes in tracheids is to:

Accepted Answer

A) facilitate movement of air bubbles. 
B) facilitate water movement. 
C) facilitate solute transport. 
D) provide support. 
E) trap air bubbles. 
A) facilitate movement of air bubbles. 
B) facilitate water movement. 
C) facilitate solute transport. 
D) provide support. 
E) trap air bubbles.

Question 4

An example of a trichome is a root hair.

Accepted Answer

A) True 
 B)False

Question 5

____________ refers to the phenomenon whereby a cell becomes increasingly committed to a course of development that weakens its ability to resume growth.

Accepted Answer

A) Positional information 
B) Competency 
C) Indeterminate growth 
D) Determination 
E) Differentiation 
A) Positional information 
B) Competency 
C) Indeterminate growth 
D) Determination 
E) Differentiation

Question 6

During the differentiation of sieve-tube elements, which of the following does not disintegrate?

Accepted Answer

A) cytoskeleon 
B) endoplasmic reticulum 
C) Golgi apparatus 
D) tonoplast 
E) nucleus 
A) cytoskeleon 
B) endoplasmic reticulum 
C) Golgi apparatus 
D) tonoplast 
E) nucleus

Question 7

Which of the following statements about the shoot and root apical meristems is FALSE?

Accepted Answer

A) They are perpetually young tissues or cells. 
B) They are established during embryogenesis. 
C) It is through their activity that most plant development occurs. 
D) They lose the potential to divide soon after embryogenesis is complete. 
E) They generate cells that give rise to roots, stems, leaves, and flowers. 
A) They are perpetually young tissues or cells. 
B) They are established during embryogenesis. 
C) It is through their activity that most plant development occurs. 
D) They lose the potential to divide soon after embryogenesis is complete. 
E) They generate cells that give rise to roots, stems, leaves, and flowers.

Question 8

______ are types of tracheary elements.

Accepted Answer

A) Vessel elements and tracheids 
B) Tracheids and xylem parenchyma 
C) Vessel elements and xylem parenchyma 
D) Xylem fibers and tracheids 
E) Xylem fibers and xylem parenchyma 
A) Vessel elements and tracheids 
B) Tracheids and xylem parenchyma 
C) Vessel elements and xylem parenchyma 
D) Xylem fibers and tracheids 
E) Xylem fibers and xylem parenchyma

Question 9

Vessel elements have perforation plates, but tracheids do not.

Accepted Answer

A) True 
 B)False

Question 10

By definition, metaxylem is ______ protoxylem.

Accepted Answer

A) formed before 
B) formed after 
C) formed at the same time as 
D) larger than 
E) smaller than 
A) formed before 
B) formed after 
C) formed at the same time as 
D) larger than 
E) smaller than

Question 11

A companion cell and its associated sieve-tube element are derived from the same mother cell.

Accepted Answer

A) True 
 B)False

Question 12

Unlike wound callose, definitive callose is deposited at the sieve areas and sieve plates of senescing sieve elements.

Accepted Answer

A) True 
 B)False

Question 13

Stomata are the ______ between ______.

Accepted Answer

A) cells; subsidiary cells 
B) cells; guard cells 
C) pores; guard cells 
D) pores; subsidiary cells 
E) pores; trichomes 
A) cells; subsidiary cells 
B) cells; guard cells 
C) pores; guard cells 
D) pores; subsidiary cells 
E) pores; trichomes

Question 14

The parenchyma cells that are developmentally related to the ______ of angiosperms are called ______.

Accepted Answer

A) sieve cells; companion cells 
B) sieve cells; albuminous cells 
C) sieve-tube elements; companion cells 
D) sieve-tube elements; albuminous cells 
E) sieve tubes; P-protein bodies 
A) sieve cells; companion cells 
B) sieve cells; albuminous cells 
C) sieve-tube elements; companion cells 
D) sieve-tube elements; albuminous cells 
E) sieve tubes; P-protein bodies

Question 15

The _____ is thought to supply the sieve-tube element with essential molecules.

Accepted Answer

A) forisome 
B) companion cell 
C) P-protein body 
D) sclereid 
E) callose 
A) forisome 
B) companion cell 
C) P-protein body 
D) sclereid 
E) callose

Question 16

By regulating stomata, guard cells control the movement of gases into and out of the plant.

Accepted Answer

A) True 
 B)False

Question 17

Tracheids are tracheary elements found in angiosperms but not gymnosperms.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following statements about sclerenchyma cells is FALSE?

Accepted Answer

A) They are ground-tissue cells. 
B) They often lack protoplasts at maturity. 
C) They strengthen plant parts that are still elongating. 
D) They have thick, lignified, secondary walls. 
E) They may develop in any part of the primary and secondary plant bodies. 
A) They are ground-tissue cells. 
B) They often lack protoplasts at maturity. 
C) They strengthen plant parts that are still elongating. 
D) They have thick, lignified, secondary walls. 
E) They may develop in any part of the primary and secondary plant bodies.

Question 19

Cells that are totipotent, play an important role in wound healing, and initiate adventitious structures are:

Accepted Answer

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

Question 20

Parenchyma cells are usually dead at maturity.

Accepted Answer

A) True 
 B)False

Exam 23: Cells and Tissues of the Plant Body

Sclereids are sclerenchyma cells that are generally long and slender.

The walls of epidermal cells on the aerial parts of the plant are covered with a waxy cuticle.

One role of pit membranes in tracheids is to:

An example of a trichome is a root hair.

____________ refers to the phenomenon whereby a cell becomes increasingly committed to a course of development that weakens its ability to resume growth.

During the differentiation of sieve-tube elements, which of the following does not disintegrate?

Which of the following statements about the shoot and root apical meristems is FALSE?

______ are types of tracheary elements.

Vessel elements have perforation plates, but tracheids do not.

By definition, metaxylem is ______ protoxylem.

A companion cell and its associated sieve-tube element are derived from the same mother cell.

Unlike wound callose, definitive callose is deposited at the sieve areas and sieve plates of senescing sieve elements.

Stomata are the ______ between ______.

The parenchyma cells that are developmentally related to the ______ of angiosperms are called ______.

The _____ is thought to supply the sieve-tube element with essential molecules.

By regulating stomata, guard cells control the movement of gases into and out of the plant.

Tracheids are tracheary elements found in angiosperms but not gymnosperms.

Which of the following statements about sclerenchyma cells is FALSE?

Cells that are totipotent, play an important role in wound healing, and initiate adventitious structures are:

Parenchyma cells are usually dead at maturity.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

Filters

Stomata are the between .

The parenchyma cells that are developmentally related to the of angiosperms are called .