Question 1

The components of ribosomes are formed within

Accepted Answer

A)  the endoplasmic reticulum. 
B)  Golgi complexes. 
C)  lysosomes. 
D)  mitochondria. 
E)  nucleoli. 
A)  the endoplasmic reticulum. 
B)  Golgi complexes. 
C)  lysosomes. 
D)  mitochondria. 
E)  nucleoli.

Question 2

Chromosomes consist of ________ and ________.

Accepted Answer

A)  RNA; carbohydrates 
B)  DNA; lipids 
C)  DNA; proteins 
D)  water; RNA 
E)  RNA; proteins 
A)  RNA; carbohydrates 
B)  DNA; lipids 
C)  DNA; proteins 
D)  water; RNA 
E)  RNA; proteins

Question 3

Organelles that break down fatty acids and hydrogen peroxide are

Accepted Answer

A)  lysosomes. 
B)  peroxisomes. 
C)  endocytic vesicles. 
D)  nuclei. 
E)  toxisomes. 
A)  lysosomes. 
B)  peroxisomes. 
C)  endocytic vesicles. 
D)  nuclei. 
E)  toxisomes.

Question 4

In-Text Figure Based Questions
-In the facilitated diffusion of glucose, what determines the direction in which glucose molecules will betransported? (Figure 3-18)

Accepted Answer

A) ______the amount of ATP available inside the cell versus outside the cell 
B)  the amount of sodium available to bind inside the cell versus outside the cell 
C)  the concentration gradient 
D)  the voltage of the membrane 
E)  the tonicity of the cell 
A) ______the amount of ATP available inside the cell versus outside the cell 
B)  the amount of sodium available to bind inside the cell versus outside the cell 
C)  the concentration gradient 
D)  the voltage of the membrane 
E)  the tonicity of the cell

Question 5

The ________ of a cell membrane indicates how easy it is for substances to cross.

Accepted Answer

A)  thickness 
B)  pliability 
C)  density 
D)  permeability 
E)  charge 
A)  thickness 
B)  pliability 
C)  density 
D)  permeability 
E)  charge

Question 6

Figure 3-2 The Anatomy of a Representative Cell

Use Figure 3-2 to answer the following questions:
-Which structure produces ATP for the cell?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  5 
E)  6 
A)  1 
B)  2 
C)  3 
D)  5 
E)  6

Question 7

A cell duplicates its chromosomes during the ________ phase.

Accepted Answer

A)  Go 
B)  G1 
C)  G2 
D)  Gm 
E)  S 
A)  Go 
B)  G1 
C)  G2 
D)  Gm 
E)  S

Question 8

The process of duplicating chromosomes prior to cell division is called

Accepted Answer

A)  replication. 
B)  repetition. 
C)  recurrence. 
D)  remodeling. 
E)  reassembling. 
A)  replication. 
B)  repetition. 
C)  recurrence. 
D)  remodeling. 
E)  reassembling.

Question 9

Microfilaments do not

Accepted Answer

A)  anchor the cytoskeleton to membrane proteins. 
B)  help determine the consistency of cytoplasm. 
C)  produce cell movement, with myosin. 
D)  consist of the protein called actin. 
E)  distribute chromosomes to opposite ends of a dividing cell. 
A)  anchor the cytoskeleton to membrane proteins. 
B)  help determine the consistency of cytoplasm. 
C)  produce cell movement, with myosin. 
D)  consist of the protein called actin. 
E)  distribute chromosomes to opposite ends of a dividing cell.

Question 10

Cyclin, a protein that becomes more abundant as the cell cycle proceeds,

Accepted Answer

A)  delays cytokinesis. 
B)  activates repressor genes. 
C)  triggers DNA replication. 
D)  damages telomeres. 
E)  takes part in triggering mitosis. 
A)  delays cytokinesis. 
B)  activates repressor genes. 
C)  triggers DNA replication. 
D)  damages telomeres. 
E)  takes part in triggering mitosis.

Question 11

The membrane potential in an undisturbed cell is called its

Accepted Answer

A)  quiet potential. 
B)  inactive state. 
C)  passive state. 
D)  resting membrane potential. 
E)  interphase. 
A)  quiet potential. 
B)  inactive state. 
C)  passive state. 
D)  resting membrane potential. 
E)  interphase.

Question 12

If the concentration of sodium chloride in the interstitial fluid surrounding cells decreases and the concentration of other solutes remains constant,

Accepted Answer

A)  the cells will shrink. 
B)  the cells will swell. 
C)  the fluid outside of the cells will become isotonic. 
D)  the fluid outside of the cells will become hypertonic. 
E)  the cells will not change. 
A)  the cells will shrink. 
B)  the cells will swell. 
C)  the fluid outside of the cells will become isotonic. 
D)  the fluid outside of the cells will become hypertonic. 
E)  the cells will not change.

Question 13

What is an advantage of the electron microscope over the compound light microscope?

Accepted Answer

A)  It can function in complete darkness. 
B)  It is older, more reliable technology. 
C)  It is less expensive. 
D)  It allows much greater magnification of a specimen. 
E)  It is portable. 
A)  It can function in complete darkness. 
B)  It is older, more reliable technology. 
C)  It is less expensive. 
D)  It allows much greater magnification of a specimen. 
E)  It is portable.

Question 14

The genetically programmed death of cells is called

Accepted Answer

A)  differentiation. 
B)  replication. 
C)  apoptosis. 
D)  metastasis. 
E)  mitosis. 
A)  differentiation. 
B)  replication. 
C)  apoptosis. 
D)  metastasis. 
E)  mitosis.

Question 15

The correct order of phases in the cell cycle is

Accepted Answer

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

Question 16

The enzyme ________ is required for the synthesis of mRNA.

Accepted Answer

A)  RNA polymerase 
B)  deoxyribase 
C)  phosphatase 
D)  RNA synthetase 
E)  ribase 
A)  RNA polymerase 
B)  deoxyribase 
C)  phosphatase 
D)  RNA synthetase 
E)  ribase

Question 17

Embryonic stem cells might be used to replace neurons lost in Parkinson's Disease because

Accepted Answer

A)  they are readily available. 
B)  they divide quickly. 
C)  they are young and vigorous. 
D)  they have not yet differentiated. 
E)  they are taken from the brain of the embryo. 
A)  they are readily available. 
B)  they divide quickly. 
C)  they are young and vigorous. 
D)  they have not yet differentiated. 
E)  they are taken from the brain of the embryo.

Question 18

Each triplet of bases in a gene corresponds to

Accepted Answer

A)  one amino acid in a protein. 
B)  one DNA nucleotide. 
C)  one protein. 
D)  one mRNA. 
E)  one chromosome. 
A)  one amino acid in a protein. 
B)  one DNA nucleotide. 
C)  one protein. 
D)  one mRNA. 
E)  one chromosome.

Question 19

During kidney dialysis, a person's blood is passed through a bath that contains several ions and molecules.The blood is separated from the dialysis fluid by a membrane that allows water, small ions, and small molecules to pass, but does not allow large proteins or blood cells to pass. What should the composition of dialysis fluid be for it to remove urea (a small molecule without changing the blood volume (removing water from the blood)?

Accepted Answer

For the dialysis fluid to remove urea wi

Question 20

During mitosis, two daughter cells form, each of which has

Accepted Answer

A)  a different number of chromosomes than the original cell. 
B)  twice as many chromosomes as the original cell. 
C)  the same number of chromosomes as the original cell. 
D)  a lesser number of chromosomes than the original cell. 
E)  half as many chromosomes as the original cell. 
A)  a different number of chromosomes than the original cell. 
B)  twice as many chromosomes as the original cell. 
C)  the same number of chromosomes as the original cell. 
D)  a lesser number of chromosomes than the original cell. 
E)  half as many chromosomes as the original cell.

Exam 3: The Cellular Level of Organization

The components of ribosomes are formed within

Chromosomes consist of ________ and ________.

Organelles that break down fatty acids and hydrogen peroxide are

In-Text Figure Based Questions -In the facilitated diffusion of glucose, what determines the direction in which glucose molecules will betransported? (Figure 3-18)

The ________ of a cell membrane indicates how easy it is for substances to cross.

Figure 3-2 The Anatomy of a Representative Cell Use Figure 3-2 to answer the following questions: -Which structure produces ATP for the cell?

A cell duplicates its chromosomes during the ________ phase.

The process of duplicating chromosomes prior to cell division is called

Microfilaments do not

Cyclin, a protein that becomes more abundant as the cell cycle proceeds,

The membrane potential in an undisturbed cell is called its

If the concentration of sodium chloride in the interstitial fluid surrounding cells decreases and the concentration of other solutes remains constant,

What is an advantage of the electron microscope over the compound light microscope?

The genetically programmed death of cells is called

The correct order of phases in the cell cycle is

The enzyme ________ is required for the synthesis of mRNA.

Embryonic stem cells might be used to replace neurons lost in Parkinson's Disease because

Each triplet of bases in a gene corresponds to

During mitosis, two daughter cells form, each of which has

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters

Chromosomes consist of and .