Question 1

Each of the following statements concerning mitochondria is true, except one. Identify the exception.

Accepted Answer

A)  The matrix contains metabolic enzymes involved in energy production. 
B)  Respiratory enzymes are attached to the surface of the cristae. 
C)  The cristae increase the inner surface area of the organelle. 
D)  The mitochondria contain no DNA. 
E)  The mitochondria produce most of a cell's ATP. 
A)  The matrix contains metabolic enzymes involved in energy production. 
B)  Respiratory enzymes are attached to the surface of the cristae. 
C)  The cristae increase the inner surface area of the organelle. 
D)  The mitochondria contain no DNA. 
E)  The mitochondria produce most of a cell's ATP.

Question 2

A cell duplicates its chromosomes during the______ phase.

Accepted Answer

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

Question 3

All of the following membrane transport mechanisms are passive processes, except

Accepted Answer

A)  diffusion. 
B)  vesicular transport. 
C)  facilitated diffusion. 
D)  osmosis. 
E)  all of the above 
A)  diffusion. 
B)  vesicular transport. 
C)  facilitated diffusion. 
D)  osmosis. 
E)  all of the above

Question 4

Some cells contain large numbers of mitochondria while others have relatively few or none. This suggests that

Accepted Answer

A)  cells with small numbers of mitochondria have a large ATP supply. 
B)  cells with large numbers of mitochondria have a low energy demand. 
C)  some cells are older than others. 
D)  cells with large numbers of mitochondria are short- lived. 
E)  cells with large numbers of mitochondria have a high energy demand. 
A)  cells with small numbers of mitochondria have a large ATP supply. 
B)  cells with large numbers of mitochondria have a low energy demand. 
C)  some cells are older than others. 
D)  cells with large numbers of mitochondria are short- lived. 
E)  cells with large numbers of mitochondria have a high energy demand.

Question 5

Figure 3- 1 The Plasmalemma
Use Figure 3- 1 to answer the following questions):
-What part of the plasmalemma is hydrophobic?

Accepted Answer

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

Question 6

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 7

Figure 3- 2 The Anatomy of a Representative Cell
Use Figure 3- 2 to answer the following questions):
-The structure labeled "1" permits the cell to

Accepted Answer

A)  swim in extracellular fluid. 
B)  attach to neighboring cells. 
C)  produce more cells. 
D)  increase surface area for increased membrane transport. 
E)  trap bacteria. 
A)  swim in extracellular fluid. 
B)  attach to neighboring cells. 
C)  produce more cells. 
D)  increase surface area for increased membrane transport. 
E)  trap bacteria.

Question 8

Mitosis is to somatic cells as meiosis is to

Accepted Answer

A)  sensory cells. 
B)  visceral cells. 
C)  stem cells. 
D)  reproductive cells. 
E)  plant cells. 
A)  sensory cells. 
B)  visceral cells. 
C)  stem cells. 
D)  reproductive cells. 
E)  plant cells.

Question 9

The proper distribution of a cell's genetic material to two daughter cells is accomplished by the process of _____________ .

Accepted Answer

The answer of The proper distribution of a cell's genetic...

Question 10

Examination of a sample of glandular cells reveals an extensive network of smooth endoplasmic reticulum. Which of the following is the likeliest product of these cells?

Accepted Answer

A)  steroid hormones 
B)  digestive enzymes 
C)  transport proteins 
D)  antibodies 
E)  protein hormones 
A)  steroid hormones 
B)  digestive enzymes 
C)  transport proteins 
D)  antibodies 
E)  protein hormones

Question 11

During mitosis, chromatids separate into daughter chromosomes during

Accepted Answer

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

Question 12

Figure 3- 1 The Plasmalemma
Use Figure 3- 1 to answer the following questions):
-Lipid molecules pass into the cell through the structure labeled

Accepted Answer

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

Question 13

How would an inhibitor of the sodium- potassium exchange pump affect the resting potential?

Accepted Answer

The maintenance of a proper resting pote

Question 14

A defense cell engulfing a bacterium illustrates

Accepted Answer

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

Question 15

The start of each gene begins with a ______ segment

Accepted Answer

The answer of The start of each gene begins with...

Question 16

In ________one substance is transported into the cell, and another is transported out.

Accepted Answer

countertra

Question 17

Define osmosis.

Accepted Answer

Osmosis is the transfer of wat

Question 18

The extracellular fluid in most tissues is called the________ fluid

Accepted Answer

The answer of The extracellular fluid in most tissues is...

Question 19

Assume that the transport of a particular amino acid across the plasmalemma is observed 1) to occur only down its concentration gradient and 2) to slow when a similar amino acid is added to the extracellular fluid. The movement of the amino acid through the membrane is most likely by

Accepted Answer

A)  osmosis. 
B)  active transport. 
C)  facilitated diffusion. 
D)  diffusion. 
E)  pinocytosis. 
A)  osmosis. 
B)  active transport. 
C)  facilitated diffusion. 
D)  diffusion. 
E)  pinocytosis.

Question 20

The process of forming mRNA is called

Accepted Answer

A)  ribolation. 
B)  translation. 
C)  replication. 
D)  transcription. 
E)  auscultation. 
A)  ribolation. 
B)  translation. 
C)  replication. 
D)  transcription. 
E)  auscultation.

Exam 3: The Cellular Level of Organization

Each of the following statements concerning mitochondria is true, except one. Identify the exception.

A cell duplicates its chromosomes during the______ phase.

All of the following membrane transport mechanisms are passive processes, except

Some cells contain large numbers of mitochondria while others have relatively few or none. This suggests that

Figure 3- 1 The Plasmalemma Use Figure 3- 1 to answer the following questions): -What part of the plasmalemma is hydrophobic?

Figure 3- 2 The Anatomy of a Representative Cell Use Figure 3- 2 to answer the following questions): -The structure labeled "1" permits the cell to

Mitosis is to somatic cells as meiosis is to

The proper distribution of a cell's genetic material to two daughter cells is accomplished by the process of _____________ .

Examination of a sample of glandular cells reveals an extensive network of smooth endoplasmic reticulum. Which of the following is the likeliest product of these cells?

During mitosis, chromatids separate into daughter chromosomes during

Figure 3- 1 The Plasmalemma Use Figure 3- 1 to answer the following questions): -Lipid molecules pass into the cell through the structure labeled

How would an inhibitor of the sodium- potassium exchange pump affect the resting potential?

A defense cell engulfing a bacterium illustrates

The start of each gene begins with a ______ segment

In ________one substance is transported into the cell, and another is transported out.

Define osmosis.

The extracellular fluid in most tissues is called the________ fluid

Assume that the transport of a particular amino acid across the plasmalemma is observed 1) to occur only down its concentration gradient and 2) to slow when a similar amino acid is added to the extracellular fluid. The movement of the amino acid through the membrane is most likely by

The process of forming mRNA is called

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 Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphoid System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

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