$$N_{Tcell} = N_{initial} \times 2$$^{n}$$

Question 1

Which of the following is NOT an attribute of adaptive immunity?

Accepted Answer

Immediate response

Question 2

Where do B lymphocytes mature?

Accepted Answer

Red bone marrow

Question 3

Which of the following best describes the function of antibodies in the immune response?

Accepted Answer

They bind to epitopes and neutralize pathogens or toxins.

Question 4

A patient receives a vaccine containing inactivated viral particles. What type of immunity is being acquired?

Accepted Answer

Artificially acquired active immunity

Question 5

Which class of antibody is most common and longest-lasting in the blood?

Accepted Answer

IgG

Question 6

What is the primary function of cytotoxic T lymphocytes?

Accepted Answer

Directly kill infected or abnormal cells

Question 7

Which of the following is TRUE regarding the specificity of B cell receptors (BCRs)?

Accepted Answer

Each BCR recognizes only one epitope.

Question 8

Which process ensures that immune responses are not directed against self-antigens?

Accepted Answer

Clonal deletion

Question 9

A newborn receives antibodies from its mother through breast milk. What type of immunity is this?

Accepted Answer

Naturally acquired passive immunity

Question 10

Which of the following is a function of antibodies that involves the clumping of pathogens?

Accepted Answer

Agglutination

Question 11

Which equation best represents the relationship between the number of B cell receptors and the number of epitopes recognized?

Accepted Answer

$$N_{BCR} = N_{epitope}$$

Question 12

Which of the following cytokines is primarily responsible for signaling among leukocytes?

Accepted Answer

Interleukins (ILs)

Question 13

What is the role of MHC class I proteins in adaptive immunity?

Accepted Answer

Present endogenous antigens to cytotoxic T cells

Question 14

Which of the following best describes the process of opsonization?

Accepted Answer

Antibodies bind to pathogens and facilitate their uptake by phagocytes.

Question 15

A patient with a viral infection is most likely to have which type of immune response activated?

Accepted Answer

Cell-mediated immune response

Question 16

Which of the following is TRUE about memory B cells?

Accepted Answer

They persist in lymphoid tissue and initiate antibody production upon re-exposure to antigen.

Question 17

Which equation describes the clonal expansion of T cells after antigen exposure?

Accepted Answer

$$N_{Tcell} = N_{initial} 	imes 2$$^{n}$$

Question 18

Which of the following is NOT a secondary lymphoid organ?

Accepted Answer

Thymus

Question 19

Which of the following is a property of antigens?

Accepted Answer

They are recognized by three-dimensional regions called epitopes.

Question 20

Which of the following is a function of regulatory T lymphocytes?

Accepted Answer

Repress adaptive immune responses

Adaptive Immunity: Structure, Function, and Mechanisms

Study Guide - Practice Questions