Question 1

Which of the following is NOT one of the five attributes of adaptive immunity?

Accepted Answer

Phagocytosis

Question 2

A patient is infected with an intracellular protozoan. Which branch of adaptive immunity is primarily responsible for eliminating this pathogen?

Accepted Answer

Cell-mediated immune response

Question 3

Which organ is the site of maturation for T lymphocytes?

Accepted Answer

Thymus

Question 4

What is the main function of B lymphocytes in adaptive immunity?

Accepted Answer

Secretion of antibodies

Question 5

Which class of antibody is most abundant and has the longest half-life in the human body?

Accepted Answer

IgG

Question 6

A dendritic cell presents an antigen using MHC II. Which type of T cell will recognize this presentation?

Accepted Answer

Helper T cell (CD4+)

Question 7

Which process ensures that lymphocytes do not attack the body's own cells?

Accepted Answer

Clonal deletion

Question 8

Which of the following is a property that makes a molecule a good antigen?

Accepted Answer

High structural complexity

Question 9

What is the role of perforin in the cytotoxic T cell response?

Accepted Answer

It creates pores in the target cell membrane

Question 10

Which cytokine is primarily responsible for the differentiation of helper T cells into Th2 cells?

Accepted Answer

Interleukin-4 (IL-4)

Question 11

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

Accepted Answer

Naturally acquired passive immunity

Question 12

Which of the following best describes the antigen-binding site of a B cell receptor (BCR)?

Accepted Answer

It is complementary to a specific epitope

Question 13

Which immune cell is responsible for presenting antigens to T cells using MHC II molecules?

Accepted Answer

Dendritic cells

Question 14

During a secondary immune response, memory B cells are activated. What is the expected outcome compared to the primary response?

Accepted Answer

Faster and more robust antibody production

Question 15

Which of the following is a function of antibodies in the immune response?

Accepted Answer

Catalyzing the production of ozone and hydrogen peroxide

Question 16

A patient receives a vaccine containing inactivated virus. What type of immunity is being induced?

Accepted Answer

Artificially acquired active immunity

Question 17

Which of the following statements about T cell receptors (TCRs) is correct?

Accepted Answer

TCRs only bind epitopes presented by MHC proteins

Question 18

Which process describes the elimination of self-reactive lymphocytes during immune cell development?

Accepted Answer

Clonal deletion

Question 19

Which of the following best explains why misregulation of adaptive immunity can lead to autoimmune disorders?

Accepted Answer

Immune responses are directed against self-antigens

Question 20

A researcher observes that a certain antigen is a protein with a molecular weight of $$80,000$$ daltons and has a complex structure. Based on the properties of antigens, what can be inferred about its immunogenicity?

Accepted Answer

It is likely to be a strong antigen

Week 11 lecture notes

Guida di studio - Domande di pratica

Study guide - Flashcard