Question 1

Facilitated diffusion differs from ordinary diffusion in that

Accepted Answer

A) facilitated diffusion consumes ATP. 
B) facilitated diffusion moves molecules from an area of lower concentration to an area of higher concentration. 
C) the rate of molecular movement is limited by the number of available carrier molecules. 
D) facilitated diffusion never eliminates the concentration gradient. 
E) the rate of molecular movement is not limited by the number of available carrier molecules. 
A) facilitated diffusion consumes ATP. 
B) facilitated diffusion moves molecules from an area of lower concentration to an area of higher concentration. 
C) the rate of molecular movement is limited by the number of available carrier molecules. 
D) facilitated diffusion never eliminates the concentration gradient. 
E) the rate of molecular movement is not limited by the number of available carrier molecules.

Question 2

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 3

During this phase of cell division,the chromosomes uncoil,the nuclear membrane forms,and cytokinesis occurs.

Accepted Answer

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

Question 4

Changes in the membrane potential of a cell are involved in

Accepted Answer

A) movement. 
B) thought. 
C) glandular secretion. 
D) nerve cell communication. 
E) All of the answers are correct. 
A) movement. 
B) thought. 
C) glandular secretion. 
D) nerve cell communication. 
E) All of the answers are correct.

Question 5

The extracellular fluid in most tissues is called ________ fluid.

Accepted Answer

A) interstitial 
B) cytosolic 
C) cytoplasmic 
D) outside 
E) peripheral 
A) interstitial 
B) cytosolic 
C) cytoplasmic 
D) outside 
E) peripheral

Question 6

The physical process by which a single animal cell separates into two cells is called

Accepted Answer

A) cytosis. 
B) mitosis. 
C) cytokinesis. 
D) phoresis. 
E) meiosis. 
A) cytosis. 
B) mitosis. 
C) cytokinesis. 
D) phoresis. 
E) meiosis.

Question 7

When activated,lysosomes function in

Accepted Answer

A) formation of new cell membranes. 
B) synthesis of proteins. 
C) digestion of materials. 
D) synthesis of lipids. 
E) cell division. 
A) formation of new cell membranes. 
B) synthesis of proteins. 
C) digestion of materials. 
D) synthesis of lipids. 
E) cell division.

Question 8

Many proteins in the cytosol are ________ that accelerate metabolic reactions.

Accepted Answer

A) carbohydrates 
B) enzymes 
C) lipids 
D) messengers 
E) ions 
A) carbohydrates 
B) enzymes 
C) lipids 
D) messengers 
E) ions

Question 9

Which of the following statements concerning mitochondria is false?

Accepted Answer

A) The cristae increase the inner surface area of the organelle. 
B) The matrix contains metabolic enzymes involved in ATP synthesis. 
C) Respiratory enzymes are attached to the surface of the cristae. 
D) The mitochondria require carbon dioxide and produce oxygen in the process of energy transformation. 
E) The mitochondria produce most of a cell's ATP. 
A) The cristae increase the inner surface area of the organelle. 
B) The matrix contains metabolic enzymes involved in ATP synthesis. 
C) Respiratory enzymes are attached to the surface of the cristae. 
D) The mitochondria require carbon dioxide and produce oxygen in the process of energy transformation. 
E) The mitochondria produce most of a cell's ATP.

Question 10

There is a direct correlation between the potency of a general anesthetic such as ether and its ability to

Accepted Answer

A) dissolve in water. 
B) dissolve in lipids. 
C) bind to proteins. 
D) interact with carbohydrates. 
E) bind to DNA. 
A) dissolve in water. 
B) dissolve in lipids. 
C) bind to proteins. 
D) interact with carbohydrates. 
E) bind to DNA.

Question 11

The following is a list of the steps involved in the process of secretion by the Golgi apparatus.What is the proper order for these steps?
1) Material moves from cisterna to cisterna by means of transfer vesicles.
2) Exocytosis
3) Products from RER are packaged into transport vesicles.
4) Secretory vesicles are formed at the maturing face.
5) Vesicles arrive at the forming face.
6) Enzymes modify arriving proteins and glycoproteins.

Accepted Answer

A) 5,6,1,4,2,3 
B) 2,3,5,6,1,4 
C) 4,3,1,6,5,2 
D) 3,5,6,1,4,2 
E) 1,3,6,4,2,5 
A) 5,6,1,4,2,3 
B) 2,3,5,6,1,4 
C) 4,3,1,6,5,2 
D) 3,5,6,1,4,2 
E) 1,3,6,4,2,5

Question 12

A defense cell engulfing a bacterium illustrates

Accepted Answer

A) pinocytosis. 
B) receptor-mediated exocytosis. 
C) exocytosis. 
D) phagocytosis. 
E) receptor-mediated endocytosis. 
A) pinocytosis. 
B) receptor-mediated exocytosis. 
C) exocytosis. 
D) phagocytosis. 
E) receptor-mediated endocytosis.

Question 13

Chemical analysis of a tissue sample indicates that it contains abundant myosin filaments.This tissue probably contains

Accepted Answer

A) nerve cells. 
B) reproductive cells. 
C) bone cells. 
D) muscle cells. 
E) liver cells. 
A) nerve cells. 
B) reproductive cells. 
C) bone cells. 
D) muscle cells. 
E) liver cells.

Question 14

What would the complimentary DNA template strand be to produce the mRNA sequence of UGU - CAA?

Accepted Answer

A) ACA - GTT 
B) UCU - GUU 
C) CGC - ATT 
D) ACA - GUU 
E) TCT - GTT 
A) ACA - GTT 
B) UCU - GUU 
C) CGC - ATT 
D) ACA - GUU 
E) TCT - GTT

Question 15

Each of the following is an example of a nonmembranous organelle except

Accepted Answer

A) lysosomes. 
B) cilia. 
C) centrioles. 
D) ribosomes. 
E) cytoskeleton. 
A) lysosomes. 
B) cilia. 
C) centrioles. 
D) ribosomes. 
E) cytoskeleton.

Question 16

During mitosis,chromatids separate into daughter chromosomes in

Accepted Answer

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

Question 17

If an animal cell lacked centrioles,it would not be able to

Accepted Answer

A) move. 
B) synthesize proteins. 
C) produce DNA. 
D) metabolize sugars. 
E) form the mitotic spindle. 
A) move. 
B) synthesize proteins. 
C) produce DNA. 
D) metabolize sugars. 
E) form the mitotic spindle.

Question 18

A DNA nucleotide is composed of

Accepted Answer

A) three amino acids. 
B) a codon and an anticodon. 
C) one nitrogen base,deoxyribose sugar,and a phosphate group. 
D) four nitrogen bases. 
E) protein,lipid,and ribose sugar. 
A) three amino acids. 
B) a codon and an anticodon. 
C) one nitrogen base,deoxyribose sugar,and a phosphate group. 
D) four nitrogen bases. 
E) protein,lipid,and ribose sugar.

Question 19

A malignant neoplasm is often called a(n)

Accepted Answer

A) cancer. 
B) tumor. 
C) swelling. 
D) infection. 
E) All of the answers are correct. 
A) cancer. 
B) tumor. 
C) swelling. 
D) infection. 
E) All of the answers are correct.

Question 20

The endoplasmic reticulum is an example of a(n)________ organelle.

Accepted Answer

A) filamentous 
B) extracellular 
C) interstitial 
D) membranous 
E) bound 
A) filamentous 
B) extracellular 
C) interstitial 
D) membranous 
E) bound

Exam 3: The Cellular Level of Organization

Facilitated diffusion differs from ordinary diffusion in that

The genetically programmed death of cells is called

During this phase of cell division,the chromosomes uncoil,the nuclear membrane forms,and cytokinesis occurs.

Changes in the membrane potential of a cell are involved in

The extracellular fluid in most tissues is called ________ fluid.

The physical process by which a single animal cell separates into two cells is called

When activated,lysosomes function in

Many proteins in the cytosol are ________ that accelerate metabolic reactions.

Which of the following statements concerning mitochondria is false?

There is a direct correlation between the potency of a general anesthetic such as ether and its ability to

A defense cell engulfing a bacterium illustrates

Chemical analysis of a tissue sample indicates that it contains abundant myosin filaments.This tissue probably contains

What would the complimentary DNA template strand be to produce the mRNA sequence of UGU - CAA?

Each of the following is an example of a nonmembranous organelle except

During mitosis,chromatids separate into daughter chromosomes in

If an animal cell lacked centrioles,it would not be able to

A DNA nucleotide is composed of

A malignant neoplasm is often called a(n)

The endoplasmic reticulum is an example of a(n)________ organelle.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Neural 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 and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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