Question 1

In HIV infection, reverse transcriptase

Accepted Answer

A) makes DNA from viral RNA. 
B) makes RNA from viral DNA. 
C) makes protein from viral RNA. 
D) makes protein from viral DNA. 
A) makes DNA from viral RNA. 
B) makes RNA from viral DNA. 
C) makes protein from viral RNA. 
D) makes protein from viral DNA.

Question 2

What is not true of the spleen?

Accepted Answer

A) It is the largest lymphatic organ. 
B) It contains nodules similar to lymphatic nodules. 
C) It contains many phagocytes. 
D) The spaces in the lobes of the spleen are filled with lymph. 
A) It is the largest lymphatic organ. 
B) It contains nodules similar to lymphatic nodules. 
C) It contains many phagocytes. 
D) The spaces in the lobes of the spleen are filled with lymph.

Question 3

A newborn is protected against certain digestive and respiratory infections by IgA received via the mother's

Accepted Answer

A) milk. 
B) blood. 
C) intestine. 
D) placenta. 
A) milk. 
B) blood. 
C) intestine. 
D) placenta.

Question 4

The tissues of the spleen are called

Accepted Answer

A) red and white pulp. 
B) black and blue pulp. 
C) tonsils and Peyer's patches. 
D) cellular and fibrous. 
A) red and white pulp. 
B) black and blue pulp. 
C) tonsils and Peyer's patches. 
D) cellular and fibrous.

Question 5

In the cellular immune response

Accepted Answer

A) B cells produce antibodies directly against antigens. 
B) T cells produce antibodies directly against antigens. 
C) T cells attach directly to antigens and destroy them. 
D) T cells attack healthy body cells. 
A) B cells produce antibodies directly against antigens. 
B) T cells produce antibodies directly against antigens. 
C) T cells attach directly to antigens and destroy them. 
D) T cells attack healthy body cells.

Question 6

Cytotoxic T cells destroy their target cells by releasing perforin, which causes holes to form in

Accepted Answer

A) cell membranes. 
B) lysosomes. 
C) ribosomes. 
D) DNA molecules. 
A) cell membranes. 
B) lysosomes. 
C) ribosomes. 
D) DNA molecules.

Question 7

During the primary immune response, B lymphocytes give rise to plasma cells.

Accepted Answer

A) True 
 B)False

Question 8

Low-grade fever is an effective defense for short periods of time because it

Accepted Answer

A) increases iron in the blood. 
B) includes pyrogens that destroy the pathogens. 
C) increases temperature, which slows the growth of bacteria. 
D) slows the attack of phagocytes. 
A) increases iron in the blood. 
B) includes pyrogens that destroy the pathogens. 
C) increases temperature, which slows the growth of bacteria. 
D) slows the attack of phagocytes.

Question 9

Complement proteins, which are activated when IgG or IgM antibodies bind antigen,

Accepted Answer

A) stimulate chemotaxis, in which neutrophils and macrophages are repelled from the affected area. 
B) cause opsonization, which coats the antibody-antigen complexes in a way that attracts phagocytes. 
C) cause lysis of the T cells. 
D) stimulate cytokine release. 
A) stimulate chemotaxis, in which neutrophils and macrophages are repelled from the affected area. 
B) cause opsonization, which coats the antibody-antigen complexes in a way that attracts phagocytes. 
C) cause lysis of the T cells. 
D) stimulate cytokine release.

Question 10

Lymphatic capillaries are thin-walled, closed-ended tubes.

Accepted Answer

A) True 
 B)False

Question 11

Disease-causing agents such as viruses and bacteria are called ________.

Accepted Answer

The answer of Disease-causing agents such as viruses and bacteria...

Question 12

The mononuclear phagocytic system includes

Accepted Answer

A) T lymphocytes and B lymphocytes. 
B) monocytes, macrophages, and neutrophils. 
C) basophils, neutrophils, and eosinophils. 
D) mast cells and megakaryocytes. 
A) T lymphocytes and B lymphocytes. 
B) monocytes, macrophages, and neutrophils. 
C) basophils, neutrophils, and eosinophils. 
D) mast cells and megakaryocytes.

Question 13

IgA is passed to a newborn through maternal ________ and breast milk.

Accepted Answer

A) colostrum 
B) blood 
C) feces 
D) placenta 
A) colostrum 
B) blood 
C) feces 
D) placenta

Question 14

Muscle contraction moves lymph through lymphatic vessels.

Accepted Answer

A) True 
 B)False

Question 15

What cell types are targeted by cytotoxic T cells?

Accepted Answer

A) cytotoxic cells. 
B) T cells. 
C) all antigen-bearing cells. 
D) cancer cells and virally infected cells. 
A) cytotoxic cells. 
B) T cells. 
C) all antigen-bearing cells. 
D) cancer cells and virally infected cells.

Question 16

Immunoglobulin A is abundant in endocrine gland secretions.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not a mechanical barrier against microorganisms?

Accepted Answer

A) Saliva 
B) Urine 
C) Tears 
D) Diarrhea 
A) Saliva 
B) Urine 
C) Tears 
D) Diarrhea

Question 18

Widely distributed phagocytic cells that remain fixed in position are part of the ________.

Accepted Answer

mononuclea

Question 19

One function of lymph is

Accepted Answer

A) return of proteins to the tissue fluid. 
B) transport of foreign particles to the kidneys. 
C) transport of foreign particles to the lymph nodes. 
D) transport of oxygen and carbon dioxide. 
A) return of proteins to the tissue fluid. 
B) transport of foreign particles to the kidneys. 
C) transport of foreign particles to the lymph nodes. 
D) transport of oxygen and carbon dioxide.

Question 20

Choose the item that would provoke a cell to produce interferons.

Accepted Answer

A) Chemical irritants 
B) Viruses 
C) Bacteria 
D) Fungi 
A) Chemical irritants 
B) Viruses 
C) Bacteria 
D) Fungi

Exam 16: Lymphatic System and Immunity

In HIV infection, reverse transcriptase

What is not true of the spleen?

A newborn is protected against certain digestive and respiratory infections by IgA received via the mother's

The tissues of the spleen are called

In the cellular immune response

Cytotoxic T cells destroy their target cells by releasing perforin, which causes holes to form in

During the primary immune response, B lymphocytes give rise to plasma cells.

Low-grade fever is an effective defense for short periods of time because it

Complement proteins, which are activated when IgG or IgM antibodies bind antigen,

Lymphatic capillaries are thin-walled, closed-ended tubes.

Disease-causing agents such as viruses and bacteria are called ________.

The mononuclear phagocytic system includes

IgA is passed to a newborn through maternal ________ and breast milk.

Muscle contraction moves lymph through lymphatic vessels.

What cell types are targeted by cytotoxic T cells?

Immunoglobulin A is abundant in endocrine gland secretions.

Which of the following is not a mechanical barrier against microorganisms?

Widely distributed phagocytic cells that remain fixed in position are part of the ________.

One function of lymph is

Choose the item that would provoke a cell to produce interferons.

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

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Integumentary System

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Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Divisions of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, Growth, and Development

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