Question 1

Smooth endoplasmic reticulum is involved in ______ synthesis.

Accepted Answer

A)  protein 
B)  glycoprotein 
C)  lipid 
D)  ribosome 
E)  carbohydrate 
A)  protein 
B)  glycoprotein 
C)  lipid 
D)  ribosome 
E)  carbohydrate

Question 2

Flagella and cilia grow out of basal bodies.

Accepted Answer

A) True 
 B)False

Question 3

In the developing cell plate, the initial polysaccharide is:

Accepted Answer

A)  cellulose. 
B)  pectin. 
C)  callose. 
D)  chitin. 
E)  hemicellulose. 
A)  cellulose. 
B)  pectin. 
C)  callose. 
D)  chitin. 
E)  hemicellulose.

Question 4

DNA replication occurs during the ______ phase.

Accepted Answer

A)  G0 
B)  G1 
C)  G2 
D)  S 
E)  M 
A)  G0 
B)  G1 
C)  G2 
D)  S 
E)  M

Question 5

Which of the following statements concerning endoreduplication is FALSE?

Accepted Answer

A)  It may result in gigantic nuclei. 
B)  It involves multiple rounds of DNA synthesis. 
C)  It provides a mechanism for increasing the level of gene expression. 
D)  It may result in thousands of copies of each gene. 
E)  It usually occurs following the differentiation of cells. 
A)  It may result in gigantic nuclei. 
B)  It involves multiple rounds of DNA synthesis. 
C)  It provides a mechanism for increasing the level of gene expression. 
D)  It may result in thousands of copies of each gene. 
E)  It usually occurs following the differentiation of cells.

Question 6

Which of the following statements concerning checkpoints is FALSE?

Accepted Answer

A)  Checkpoints control the progression between certain phases of the cell cycle. 
B)  Checkpoints control the rate at which cells are produced. 
C)  Checkpoints enable a cell to sense whether certain conditions have been met. 
D)  Checkpoints involve the control of DNA and protein synthesis. 
E)  Checkpoints differ significantly among eukaryotic cells. 
A)  Checkpoints control the progression between certain phases of the cell cycle. 
B)  Checkpoints control the rate at which cells are produced. 
C)  Checkpoints enable a cell to sense whether certain conditions have been met. 
D)  Checkpoints involve the control of DNA and protein synthesis. 
E)  Checkpoints differ significantly among eukaryotic cells.

Question 7

Cyclosis refers to:

Accepted Answer

A)  the constant streaming of the cytoplasm. 
B)  the process of cell division. 
C)  that portion of the cytoplasm outside the plasma membrane. 
D)  that portion of the cytoplasm inside the plasma membrane. 
E)  the liquid inside the vacuole. 
A)  the constant streaming of the cytoplasm. 
B)  the process of cell division. 
C)  that portion of the cytoplasm outside the plasma membrane. 
D)  that portion of the cytoplasm inside the plasma membrane. 
E)  the liquid inside the vacuole.

Question 8

Which of the following statements concerning callose is FALSE?

Accepted Answer

A)  It is deposited in response to mechanical wounding. 
B)  It is associated with aspects of cell division. 
C)  It consists of spirally wound chains. 
D)  It is composed of glucose residues. 
E)  It opens plasmodesmata between contiguous cells. 
A)  It is deposited in response to mechanical wounding. 
B)  It is associated with aspects of cell division. 
C)  It consists of spirally wound chains. 
D)  It is composed of glucose residues. 
E)  It opens plasmodesmata between contiguous cells.

Question 9

Which of the following statements about microtubules is FALSE?

Accepted Answer

A)  They are components of the cytoskeleton. 
B)  Their subunits are assembled at microtubule organizing centers. 
C)  Their subunits are arranged in a solid cylinder. 
D)  They are polar structures, with plus and minus ends. 
E)  They exhibit dynamic instability. 
A)  They are components of the cytoskeleton. 
B)  Their subunits are assembled at microtubule organizing centers. 
C)  Their subunits are arranged in a solid cylinder. 
D)  They are polar structures, with plus and minus ends. 
E)  They exhibit dynamic instability.

Question 10

Chlorophylls and carotenoid pigments are embedded in the:

Accepted Answer

A)  stroma. 
B)  outer chloroplast membrane. 
C)  thylakoid membranes. 
D)  plasmalemma. 
E)  nucleoids. 
A)  stroma. 
B)  outer chloroplast membrane. 
C)  thylakoid membranes. 
D)  plasmalemma. 
E)  nucleoids.

Question 11

Which of the following is unique to cell division in plants?

Accepted Answer

A)  migration of the nucleus to the center of the cell 
B)  migration of the mitochondria to the periphery of the cell 
C)  duplication of the centrosome 
D)  duplication of the mitochondria 
E)  duplication of the endoplasmic reticulum 
A)  migration of the nucleus to the center of the cell 
B)  migration of the mitochondria to the periphery of the cell 
C)  duplication of the centrosome 
D)  duplication of the mitochondria 
E)  duplication of the endoplasmic reticulum

Question 12

Cellulose synthase is an enzyme situated in the:

Accepted Answer

A)  vacuole. 
B)  chloroplasts. 
C)  cell wall. 
D)  mitochondria. 
E)  plasma membrane. 
A)  vacuole. 
B)  chloroplasts. 
C)  cell wall. 
D)  mitochondria. 
E)  plasma membrane.

Question 13

The longest phase of mitosis is always:

Accepted Answer

A)  anaphase. 
B)  metaphase. 
C)  prophase. 
D)  interphase. 
E)  telophase. 
A)  anaphase. 
B)  metaphase. 
C)  prophase. 
D)  interphase. 
E)  telophase.

Question 14

Which of the following statements about the phragmoplast is FALSE?

Accepted Answer

A)  It forms between the two daughter nuclei. 
B)  It is composed of microtubules. 
C)  Its formation precedes the growth of the cell plate. 
D)  It begins to form at the walls of the dividing cell and grows inward. 
E)  In cells with large vacuoles, it is formed within the phragmosome. 
A)  It forms between the two daughter nuclei. 
B)  It is composed of microtubules. 
C)  Its formation precedes the growth of the cell plate. 
D)  It begins to form at the walls of the dividing cell and grows inward. 
E)  In cells with large vacuoles, it is formed within the phragmosome.

Question 15

The outer mitochondrial membrane is called the crista.

Accepted Answer

A) True 
 B)False

Question 16

Peroxisomes are organelles that:

Accepted Answer

A)  evolved from the endoplasmic reticulum. 
B)  possess their own DNA. 
C)  self-replicate. 
D)  are bounded by a double membrane. 
E)  possess their own ribosomes. 
A)  evolved from the endoplasmic reticulum. 
B)  possess their own DNA. 
C)  self-replicate. 
D)  are bounded by a double membrane. 
E)  possess their own ribosomes.

Question 17

Most of the increase in size of a plant cell results from enlargement of the vacuole.

Accepted Answer

A) True 
 B)False

Question 18

A protein destined for secretion at the cell surface is packaged at the trans-Golgi network into coated vesicles rather than smooth-surfaced vesicles.

Accepted Answer

A) True 
 B)False

Question 19

Most prokaryotic cells have only one chromosome.

Accepted Answer

A) True 
 B)False

Question 20

At full metaphase, all chromosomes are aligned midway between the spindle poles.

Accepted Answer

A) True 
 B)False

Exam 3: The Plant Cell and the Cell Cycle

Smooth endoplasmic reticulum is involved in ______ synthesis.

Flagella and cilia grow out of basal bodies.

In the developing cell plate, the initial polysaccharide is:

DNA replication occurs during the ______ phase.

Which of the following statements concerning endoreduplication is FALSE?

Which of the following statements concerning checkpoints is FALSE?

Cyclosis refers to:

Which of the following statements concerning callose is FALSE?

Which of the following statements about microtubules is FALSE?

Chlorophylls and carotenoid pigments are embedded in the:

Which of the following is unique to cell division in plants?

Cellulose synthase is an enzyme situated in the:

The longest phase of mitosis is always:

Which of the following statements about the phragmoplast is FALSE?

The outer mitochondrial membrane is called the crista.

Peroxisomes are organelles that:

Most of the increase in size of a plant cell results from enlargement of the vacuole.

A protein destined for secretion at the cell surface is packaged at the trans-Golgi network into coated vesicles rather than smooth-surfaced vesicles.

Most prokaryotic cells have only one chromosome.

At full metaphase, all chromosomes are aligned midway between the spindle poles.

Botany: an Introduction

The Molecular Composition of Plant Cells

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

Cells and Tissues 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

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