Alexandra Bozan
Quiz by , created more than 1 year ago

Lecture: Immune System

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Alexandra Bozan
Created by Alexandra Bozan about 8 years ago
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Quiz: Immune System

Question 1 of 22

1

Genetic characteristics of the human species that protects the body from certain pathogens

Select one of the following:

  • chemical barriers

  • microbial flora

  • species resistance

  • mechanical barriers

Explanation

Question 2 of 22

1

An immunoglobulin, or antibody molecule, consists of

Select one of the following:

  • two heavy and two light polypeptide chains

  • four heavy and two light polypeptide chains

  • two heavy and four light polypeptide chains

  • four heavy and four light polypeptide chains

Explanation

Question 3 of 22

1

All of the following represent examples of nonspecific immune defenses except

Select one of the following:

  • species resistance

  • phagocytosis

  • cell-mediated immunity

  • mechanical and chemical barriers

Explanation

Question 4 of 22

1

The most abundant circulating antibody, the one that normally makes up about 75% of all the antibodies in the blood, is

Select one of the following:

  • IgG

  • IgA

  • IgE

  • IgM

Explanation

Question 5 of 22

1

A large antibody with 10 binding sites

Select one of the following:

  • IgE

  • IgD

  • IgM

  • IgA

Explanation

Question 6 of 22

1

Which of the following can activate a naive B cell

Select one of the following:

  • Binding to its specific antibody

  • Binding to its specific antigen

  • All B cells are activated when an infant is born

  • All of the above

Explanation

Question 7 of 22

1

Which of the following is not a characteristic of inflammation?

Select one of the following:

  • Heat

  • Redness

  • Swelling

  • Pain

  • All of the above are characteristics of inflammation.

Explanation

Question 8 of 22

1

15% of the lymphocytes are made of these nonspecific killer cells:

Select one of the following:

  • helper T cells

  • cytotoxic T cells

  • B cells

  • NK cells

Explanation

Question 9 of 22

1

The amount of antibodies in a person’s blood is expressed as:

Select one of the following:

  • toxoid

  • titer

  • both toxoid and titer

  • none of the above

Explanation

Question 10 of 22

1

The type of immune mechanism that provides a general defense by acting against anything recognized as “not self” is called

Select one of the following:

  • nonspecific immunity

  • specific immunity

  • adaptive immunity

  • acquired immunity

Explanation

Question 11 of 22

1

Fill the blank spaces to complete the text.

The MHC antigen is important in helping the immune system identify .

Explanation

Question 12 of 22

1

The complement system can be activated by

Select one of the following:

  • the binding of complement protein 1 to the complement-binding site on the antibody molecule.

  • the binding of complement protein 3 to bacteria or viruses in the presence of properdin.

  • nonspecific immune mechanisms

  • all of the above

Explanation

Question 13 of 22

1

In the first stage of their development, B cells are known by following term: plasma B cells.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 22

1

Complement system is not a chemical barrier

Select one of the following:

  • True
  • False

Explanation

Question 15 of 22

1

Fill the blank spaces to complete the text.

This substance can destroy pathogens by lowering the pH to a level where they cannot function:

Explanation

Question 16 of 22

1

Memory B cells form plasma B cells upon rexposure to same antigen.

Select one of the following:

  • True
  • False

Explanation

Question 17 of 22

1

Fill the blank space to complete the text.

The antibody commonly found in tears, saliva and on mucous membranes is .

Explanation

Question 18 of 22

1

Pyrogens play an important role in raising the thermostat and triggering fever.

Select one of the following:

  • True
  • False

Explanation

Question 19 of 22

1

Fill the blank spaces to complete the text.

Specific immunity is controlled by two classes of lymphocytes called and .

Explanation

Question 20 of 22

1

Fill the blank space to complete the text.

The most numerous type of phagocyte is the .

Explanation

Question 21 of 22

1

John was immunized against most of the childhood diseases. What type of immunity results:

Select one of the following:

  • artificially acquired active immunity

  • passive immunity

  • nonspecific immunity

  • general immunity

  • This is not considered an example of immunity

Explanation

Question 22 of 22

1

Also known as killer lymphocytes

Select one of the following:

  • NK cells

  • cytotoxic T cell

  • Prostaglandins

  • Platelets

  • NK cells and cytotoxic T cell

Explanation

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