Question 1

Immediate hypersensitivity reactions are mediated by IgE secreted by B cells,whereas delayed hypersensitivity is mediated by T cells.

Accepted Answer

A) True 
 B)False

Question 2

Indicate the immune by using the following answer code.
-allergic response mediated by T cells

Accepted Answer

A) serum sickness 
B) immediate hypersensitivity 
C) acquired immune deficiency syndrome 
D) delayed hypersensitivity 
E) immune-complex disease
F)autoimmune disease
G)severe combined immunodeficiency 
A) serum sickness 
B) immediate hypersensitivity 
C) acquired immune deficiency syndrome 
D) delayed hypersensitivity 
E) immune-complex disease
F)autoimmune disease
G)severe combined immunodeficiency

Question 3

The only means by which macrophages can defend against microbial invaders is phagocytosis.

Accepted Answer

A) True 
 B)False

Question 4

Name three means by which microbes can be destroyed in the body without being phagocytized.

Accepted Answer

extracellular release of destructive lys

Question 5

The membrane-attack complex is formed by the five final activated components of the complement system.

Accepted Answer

A) True 
 B)False

Question 6

Which statement is correct for viruses?

Accepted Answer

A)  They are single-celled microorganisms. 
B)  They consist only of nucleic acids enclosed by a protein coat. 
C)  They are single-celled microorganisms and must invade a host cell in order to carry out metabolism and reproduce. 
D)  They consist only of nucleic acids enclosed by a protein coat and must invade a host cell in order to carry out metabolism and reproduce. 
A)  They are single-celled microorganisms. 
B)  They consist only of nucleic acids enclosed by a protein coat. 
C)  They are single-celled microorganisms and must invade a host cell in order to carry out metabolism and reproduce. 
D)  They consist only of nucleic acids enclosed by a protein coat and must invade a host cell in order to carry out metabolism and reproduce.

Question 7

Indicate which type of T cell is being described by using the answer code (options may be used more than once or not at all):
-serve to limit immune reactions in a check-and-balance relationship with the other lymphocytes

Accepted Answer

A) applies to cytotoxic T cells 
B) applies to helper T cells 
C) applies to suppressor T cells 
D) applies to both helper T and suppressor T cells 
E) applies to all three types of T cells 
A) applies to cytotoxic T cells 
B) applies to helper T cells 
C) applies to suppressor T cells 
D) applies to both helper T and suppressor T cells 
E) applies to all three types of T cells

Question 8

Compare and contrast primary versus secondary immune responses.

Accepted Answer

The primary immune response occurs when

Question 9

Chemotaxis refers to the ability of leukocytes to squeeze through small capillary pores.

Accepted Answer

A) True 
 B)False

Question 10

Match the defence molecule with the correct characteristic by using the following answer code:
-form(s)a membrane-attack complex

Accepted Answer

A) actoferrin 
B) glucocorticoids 
C) histamine 
D) endogenous 
E) opsonins
F)complement
G)antibodies
H)interferon 
A) actoferrin 
B) glucocorticoids 
C) histamine 
D) endogenous 
E) opsonins
F)complement
G)antibodies
H)interferon

Question 11

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all):
-produce hair and nails

Accepted Answer

A) keratinocytes 
B) melanocytes 
C) Langerhans cells 
D) Granstein cells 
A) keratinocytes 
B) melanocytes 
C) Langerhans cells 
D) Granstein cells

Question 12

What are the roles of helper T cells in the immune response?

Accepted Answer

The answer of What are the roles of helper T...

Question 13

Lactoferrin is a protein that binds with iron.

Accepted Answer

A) True 
 B)False

Question 14

Debris trapped on the sticky mucus lining the respiratory airways is primarily cleared away by the alveolar macrophages.

Accepted Answer

A) True 
 B)False

Question 15

Which part of the antibody is Y-shaped?

Accepted Answer

A)  antigen-binding fragments 
B)  tail portion 
C)  light chains 
D)  arm regions 
A)  antigen-binding fragments 
B)  tail portion 
C)  light chains 
D)  arm regions

Question 16

Which statement is correct for interferon?

Accepted Answer

A)  It is released from bacteria-infected cells. 
B)  It triggers the production of viral-blocking enzymes by cells that have not yet been invaded by viruses. 
C)  It directly breaks down viral messenger RNA and inhibits protein synthesis, both of which are essential for viral replication. 
D)  Its secretion is decreased during exercise. 
A)  It is released from bacteria-infected cells. 
B)  It triggers the production of viral-blocking enzymes by cells that have not yet been invaded by viruses. 
C)  It directly breaks down viral messenger RNA and inhibits protein synthesis, both of which are essential for viral replication. 
D)  Its secretion is decreased during exercise.

Question 17

Which of the following is NOT found in the epidermis?

Accepted Answer

A)  blood vessels whose calibre can be adjusted as part of the temperature regulatory mechanisms 
B)  Keratinocytes 
C)  Melanocytes 
D)  Langerhans cells 
A)  blood vessels whose calibre can be adjusted as part of the temperature regulatory mechanisms 
B)  Keratinocytes 
C)  Melanocytes 
D)  Langerhans cells

Question 18

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all):
-secrete a substance that absorbs harmful ultraviolet rays

Accepted Answer

A) keratinocytes 
B) melanocytes 
C) Langerhans cells 
D) Granstein cells 
A) keratinocytes 
B) melanocytes 
C) Langerhans cells 
D) Granstein cells

Question 19

Hair and nails are both special keratinized products.

Accepted Answer

A) True 
 B)False

Question 20

____________________ immunity is conferred by receipt of preformed antibodies.

Accepted Answer

The answer of ____________________ immunity is conferred by receipt of...

Immediate hypersensitivity reactions are mediated by IgE secreted by B cells,whereas delayed hypersensitivity is mediated by T cells.

Indicate the immune by using the following answer code. -allergic response mediated by T cells

The only means by which macrophages can defend against microbial invaders is phagocytosis.

Name three means by which microbes can be destroyed in the body without being phagocytized.

The membrane-attack complex is formed by the five final activated components of the complement system.

Which statement is correct for viruses?

Indicate which type of T cell is being described by using the answer code (options may be used more than once or not at all): -serve to limit immune reactions in a check-and-balance relationship with the other lymphocytes

Compare and contrast primary versus secondary immune responses.

Chemotaxis refers to the ability of leukocytes to squeeze through small capillary pores.

Match the defence molecule with the correct characteristic by using the following answer code: -form(s)a membrane-attack complex

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all): -produce hair and nails

What are the roles of helper T cells in the immune response?

Lactoferrin is a protein that binds with iron.

Debris trapped on the sticky mucus lining the respiratory airways is primarily cleared away by the alveolar macrophages.

Which part of the antibody is Y-shaped?

Which statement is correct for interferon?

Which of the following is NOT found in the epidermis?

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all): -secrete a substance that absorbs harmful ultraviolet rays

Hair and nails are both special keratinized products.

____________________ immunity is conferred by receipt of preformed antibodies.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters

Exam 10: Body Defences

Immediate hypersensitivity reactions are mediated by IgE secreted by B cells,whereas delayed hypersensitivity is mediated by T cells.

Indicate the immune by using the following answer code. -allergic response mediated by T cells

The only means by which macrophages can defend against microbial invaders is phagocytosis.

Name three means by which microbes can be destroyed in the body without being phagocytized.

The membrane-attack complex is formed by the five final activated components of the complement system.

Which statement is correct for viruses?

Indicate which type of T cell is being described by using the answer code (options may be used more than once or not at all): -serve to limit immune reactions in a check-and-balance relationship with the other lymphocytes

Compare and contrast primary versus secondary immune responses.

Chemotaxis refers to the ability of leukocytes to squeeze through small capillary pores.

Match the defence molecule with the correct characteristic by using the following answer code: -form(s)a membrane-attack complex

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all): -produce hair and nails

What are the roles of helper T cells in the immune response?

Lactoferrin is a protein that binds with iron.

Debris trapped on the sticky mucus lining the respiratory airways is primarily cleared away by the alveolar macrophages.

Which part of the antibody is Y-shaped?

Which statement is correct for interferon?

Which of the following is NOT found in the epidermis?

Match the defence cell with the correct characteristic by using the answer code (options may be used more than once or not at all): -secrete a substance that absorbs harmful ultraviolet rays

Hair and nails are both special keratinized products.

____________________ immunity is conferred by receipt of preformed antibodies.

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters