Question 1

Which of the following best describes the process of phagocytosis?

Accepted Answer

The ingestion of solid material by a eukaryotic cell.

Question 2

A patient is bitten by a mosquito and develops redness, swelling, and warmth at the site. Which immune process is primarily responsible for these symptoms?

Accepted Answer

Inflammation

Question 3

Which of the following is NOT a function of antibodies?

Accepted Answer

Production of interferon

Question 4

Which of the following defense systems would be involved in eliminating virally-infected host cells?

Accepted Answer

Cytotoxic T cells

Question 5

Which of the following mechanisms makes Streptococcus pyogenes resistant to phagocytosis?

Accepted Answer

Their capsules make them 'slippery' to phagocytes.

Question 6

Which of the following is a part of the innate immune defense?

Accepted Answer

Mucous membranes

Question 7

A child receives antibodies from breast milk. Which type of immunity is this?

Accepted Answer

Naturally acquired passive immunity

Question 8

Which of the following antibody functions works to enhance microbe phagocytosis?

Accepted Answer

Opsonization

Question 9

Which of the following is NOT a step used by cytotoxic T cells to kill infected host cells?

Accepted Answer

Recognition of infected host cell using its CD4 glycoprotein

Question 10

Which of the following best describes the role of memory cells in the adaptive immune response?

Accepted Answer

They allow subsequent immune responses against the same antigen to occur more strongly and more quickly.

Question 11

Which of the following is the first antibody class to appear in the serum after exposure to an antigen?

Accepted Answer

$$\mathrm{IgM}$$

Question 12

A patient with AIDS is more susceptible to life-threatening infections because their helper T cell count is low. Which of the following components of the immune response will be most impaired?

Accepted Answer

Activation of B cells and cytotoxic T cells

Question 13

Which of the following best describes the primary immune response?

Accepted Answer

A slow rise in the concentration of antibodies, followed by a gradual decline.

Question 14

Which of the following is NOT a step that ultimately leads to antibody production?

Accepted Answer

Activation of cytotoxic T cells by helper T cells

Question 15

Which of the following best explains why the variable region of an antibody is important?

Accepted Answer

It binds the antigen at its unique epitope.

Question 16

Which of the following is a feature of the small fragments presented by MHC I proteins?

Accepted Answer

They are small peptides, roughly 8-10 amino acids long.

Question 17

Which of the following best describes how a pathogenic bacterium might be neutralized by an antibody?

Accepted Answer

The antibody binds to the pathogen, blocking its binding to host cells.

Question 18

Which of the following cell types is NOT part of the second line of defense?

Accepted Answer

Plasma cells

Question 19

Which of the following pairs of proteins do NOT directly interact with one another?

Accepted Answer

BCR and TCR

Question 20

Which of the following is a real-world example of artificially acquired active immunity?

Accepted Answer

Receiving a vaccine for measles

Innate and Adaptive Immunity: Microbiology Study Notes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드