5 Levels Of Defence

Question 1

What is the first level of defense the body uses?

Answer 1

Physical barriers such as skin and mucous membranes.

Question 2

True or False: The body’s first line of defense is primarily chemical.

Answer 2

False.

Question 3

Fill in the blank: The second level of defense involves __________ responses.

Answer 3

inflammatory.

Question 4

What type of cells are primarily involved in the inflammatory response?

Answer 4

White blood cells.

Question 5

What is the third level of defense in the immune system?

Answer 5

Adaptive immune response.

Question 6

Multiple Choice: Which cells are responsible for the adaptive immune response? A) Erythrocytes B) Leukocytes C) Thrombocytes

Answer 6

B) Leukocytes.

Question 7

What is the role of antibodies in the immune system?

Answer 7

To neutralize pathogens and mark them for destruction.

Question 8

True or False: The innate immune response is specific to particular pathogens.

Answer 8

False.

Question 9

What does the term ‘pathogen’ refer to?

Answer 9

Any organism that can cause disease.

Question 10

Fill in the blank: The fourth level of defense is known as __________ immunity.

Answer 10

acquired.

Question 11

What is the primary function of T cells in the immune response?

Answer 11

To destroy infected host cells.

Question 12

Multiple Choice: Which of the following is NOT a component of the immune system? A) Lymph nodes B) Spleen C) Pancreas

Answer 12

C) Pancreas.

Question 13

What is the fifth level of defense in the body?

Answer 13

Memory immune response.

Question 14

True or False: Memory cells are produced during the primary immune response.

Answer 14

True.

Question 15

Fill in the blank: The primary purpose of memory cells is to provide __________ against future infections.

Answer 15

immunity.

Question 16

What is the difference between active and passive immunity?

Answer 16

Active immunity is developed through exposure to pathogens, while passive immunity is acquired from another source.

Question 17

Multiple Choice: Which type of immunity is provided by vaccinations? A) Active B) Passive

Answer 17

A) Active.

Question 18

What role do macrophages play in the immune system?

Answer 18

They engulf and digest pathogens and debris.

Question 19

True or False: The skin acts as a barrier to all pathogens.

Answer 19

False.

Question 20

Fill in the blank: __________ is a protein that helps to destroy infected cells.

Answer 20

Interferon.

Question 21

What triggers the inflammatory response?

Answer 21

Tissue injury or infection.

Question 22

Multiple Choice: Which type of immunity is immediate but short-lived? A) Innate B) Adaptive

Answer 22

A) Innate.

Question 23

What is the role of B cells in the immune response?

Answer 23

To produce antibodies.

Question 24

True or False: Natural killer cells are part of the adaptive immune system.

Answer 24

False.

Question 25

Fill in the blank: The immune system can remember past infections through __________ cells.

Answer 25

memory.

Question 26

What is the significance of the ‘immune memory’?

Answer 26

It allows for a faster and more effective response to previously encountered pathogens.