Introduction

Question 1

What is the primary function of the immune system?

Answer 1

To protect the body from pathogens and foreign substances.

Question 2

True or False: The immune system can differentiate between self and non-self cells.

Answer 2

True

Question 3

What are the two main branches of the immune system?

Answer 3

Innate immunity and adaptive immunity.

Question 4

Fill in the blank: ______ immunity is the first line of defense against pathogens.

Answer 4

Innate

Question 5

What is the role of antibodies in the immune response?

Answer 5

To recognize and neutralize foreign substances.

Question 6

Which cells are responsible for initiating the adaptive immune response?

Answer 6

T cells and B cells.

Question 7

What is the purpose of vaccination?

Answer 7

To stimulate the immune system to develop immunity to specific pathogens.

Question 8

What is an antigen?

Answer 8

A molecule that can be recognized by the immune system and elicit an immune response.

Question 9

True or False: Memory cells are part of the innate immune system.

Answer 9

False

Question 10

What is the function of dendritic cells in the immune response?

Answer 10

To present antigens to T cells and initiate an adaptive immune response.

Question 11

What type of immunity is provided by antibodies passed from mother to fetus through the placenta?

Answer 11

Passive immunity

Question 12

What are cytokines?

Answer 12

Signaling molecules that mediate communication between immune cells.

Question 13

Which cells are responsible for producing antibodies?

Answer 13

B cells.

Question 14

What is the function of natural killer cells in the immune response?

Answer 14

To destroy virus-infected cells and tumor cells.

Question 15

Fill in the blank: T cells mature in the ______.

Answer 15

Thymus

Question 16

What is the primary function of the complement system in the immune response?

Answer 16

To enhance the ability of antibodies and phagocytic cells to clear pathogens.

Question 17

True or False: The immune system can develop memory to provide faster and stronger responses upon re-exposure to a pathogen.

Answer 17

True

Question 18

What is the role of phagocytes in the immune response?

Answer 18

To engulf and digest pathogens.

Question 19

Which type of immunity is acquired through vaccination or recovery from an infection?

Answer 19

Active immunity

Question 20

Fill in the blank: Toll-like receptors are a type of ______ that recognize pathogen-associated molecular patterns.

Answer 20

Receptor

Question 21

What is the purpose of inflammation in the immune response?

Answer 21

To recruit immune cells to the site of infection and promote tissue repair.

Question 22

True or False: The immune system can develop tolerance to self-antigens to prevent autoimmune reactions.

Answer 22

True

Question 23

What is the function of macrophages in the immune response?

Answer 23

To phagocytize pathogens and debris, and activate other immune cells.

Question 24

What is the difference between primary and secondary immune responses?

Answer 24

Primary response is the first encounter with a pathogen, while secondary response is faster and stronger upon re-exposure.