Question 1

Toxoids

Accepted Answer

A)   contain modified bacterial exotoxin molecules.
B)   are always genetically engineered.
C)   contain select antigenic components of a pathogen rather than whole cells or viruses.
D)   confer passive immunity.
E)   All of these choices are correct.

Question 2

The DTaP immunization

Accepted Answer

A)   contains diphtheria toxoid.
B)   is administered in childhood.
C)   contains tetanus toxoid.
D)   contains a pertussis vaccine with acellular capsule material.
E)   All of these choices are correct.

Question 3

Which of the following is a distinct advantage of active immunity over passive immunity?

Accepted Answer

A)   Active immunity is always natural whereas passive immunity is frequently artificial.
B)   Active immunity provides IgG whereas passive immunity provides IgM.
C)   Active immunity enables the development of immunologic memory, whereas no memory develops with passive immunity.
D)   Active immunity develops very quickly whereas passive immunity may take months to develop.

Question 4

Pla cells

Accepted Answer

A)   secrete antibodies.
B)   function in allergic reactions.
C)   directly destroy target cells.
D)   suppress immune reactions.
E)   activate B-cells and other T-cells.

Question 5

Autoantigens are types of self-antigens that initiate an autoimmune response that can cause damage to host tissue.

Accepted Answer

A) True 
 B)False

Question 6

Each genetically distinct group of lymphocytes that possesses the same specificity is called a _____.

Accepted Answer

The answer of Each genetically distinct group of lymphocytes that...

Question 7

Which are the first to attack cancer cells and virus-infected cells?

Accepted Answer

A)   helper T-cells
B)   suppressor T-cells
C)   cytotoxic T-cells
D)   delayed hypersensitivity T-cells
E)   natural killer NK)  cells

Question 8

All of the following are advantages of attenuated vaccines over inactivated vaccines except

Accepted Answer

A)   they confer longer lasting protection.
B)   they produce infection but not disease.
C)   they can mutate back to a virulent strain.
D)   they require fewer boosters.
E)   they require smaller doses.

Question 9

In the secondary response to an antigen, the predominant antibody is

Accepted Answer

A)   IgD.
B)   IgE.
C)   IgG.
D)   IgM.
E)   IgA.

Question 10

Variolation involved using

Accepted Answer

A)   dried, ground smallpox scabs.
B)   a recombinant carrier with genetic material of the smallpox virus.
C)   preparations of human cowpox lesions.
D)   antibodies to the smallpox virus.

Question 11

Monoclonal antibodies

Accepted Answer

A)   originate from a single B-cell clone.
B)   have a single specificity for antigen.
C)   are secreted by hybridomas.
D)   are used in immunology lab tests and cancer therapy.
E)   All of these choices are correct.

Question 12

Small foreign molecules that are too small by themselves to elicit an immune response are termed

Accepted Answer

A)   antigenic determinants.
B)   haptens.
C)   antigen binding sites.
D)   variable regions.

Question 13

Immunotherapy is the

Accepted Answer

A)   use of antitoxins.
B)   use of immune serum globulin.
C)   conferring of passive immunity.
D)   administering of preformed antibodies.
E)   All of these choices are correct.

Question 14

Live, attenuated vaccines

Accepted Answer

A)   include the Sabin polio vaccine.
B)   include the measles, mumps, rubella vaccine MMR) .
C)   contain viable microbes that can multiply in the person.
D)   require smaller doses and fewer boosters compared to inactivated vaccines.
E)   All of these choices are correct.

Question 15

Which immunoglobulin class/es can fix complement?

Accepted Answer

A)   IgM only
B)   IgG only
C)   IgD only
D)   IgM and IgG
E)   IgE and IgA

Question 16

Immune sera is produced in horses for all the following except

Accepted Answer

A)   diphtheria.
B)   botulism.
C)   snake bites.
D)   chickenpox.
E)   spider bites.

Question 17

Which process involves antibodies coating microorganisms in order to facilitate phagocytosis?

Accepted Answer

A)   neutralization
B)   opsonization
C)   complement fixation
D)   agglutination
E)   anamnestic response

Question 18

All of the following are characteristics of IgM, except

Accepted Answer

A)   it has 10 antigen binding sites.
B)   it contains a central J chain.
C)   it is the first class synthesized by a pla cell.
D)   it can fix complement.
E)   it is a dimer.

Question 19

After secreting antibodies during an immune response, pla cells then differentiate into memory cells.

Accepted Answer

A) True 
 B)False

Question 20

The progeny cells of a B-cell clone are called

Accepted Answer

A)   antibodies.
B)   sensitized T-cells.
C)   activated macrophages.
D)   pla cells.
E)   Bursa cells.

Exam 15: Adaptive, Specific Immunity and Immunization

Which of the following is a distinct advantage of active immunity over passive immunity?

Correct AnswerverifiedShow Answer

Immunotherapy is the

Correct AnswerverifiedShow Answer

Pla cells

Correct AnswerverifiedShow Answer

Which are the first to attack cancer cells and virus-infected cells?

Correct AnswerverifiedShow Answer

The progeny cells of a B-cell clone are called

Correct AnswerverifiedShow Answer

Immune sera is produced in horses for all the following except

Correct AnswerverifiedShow Answer

Which immunoglobulin class/es can fix complement?

Correct AnswerverifiedShow Answer

All of the following are characteristics of IgM, except

Correct AnswerverifiedShow Answer

Each genetically distinct group of lymphocytes that possesses the same specificity is called a _____.

Correct AnswerverifiedShow Answer

In the secondary response to an antigen, the predominant antibody is

Correct AnswerverifiedShow Answer

Small foreign molecules that are too small by themselves to elicit an immune response are termed

Correct AnswerverifiedShow Answer

Live, attenuated vaccines

Correct AnswerverifiedShow Answer

Autoantigens are types of self-antigens that initiate an autoimmune response that can cause damage to host tissue.

Correct AnswerverifiedShow Answer

After secreting antibodies during an immune response, pla cells then differentiate into memory cells.

Correct AnswerverifiedShow Answer

Toxoids

Correct AnswerverifiedShow Answer

Which process involves antibodies coating microorganisms in order to facilitate phagocytosis?

Correct AnswerverifiedShow Answer

Variolation involved using

Correct AnswerverifiedShow Answer

Monoclonal antibodies

Correct AnswerverifiedShow Answer

All of the following are advantages of attenuated vaccines over inactivated vaccines except

Correct AnswerverifiedShow Answer

The DTaP immunization

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified