AnswersBiology - SC3209 ICThe Endocrine and Exocrine Systems

The Immune System Answers

10 verified answers
1
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A person who has a weakened immune system may not be able to fight against infection because

A
pathogens may enter the body and cause illness.
B
phagocytes may enter the body and cause illness.
C
normal cells crowd out unhealthy cells.
D
antibodies production is increased.
2
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How does inflammation help the body fight off further infection?

A
Inflammation keeps harmful substances away from healthy cells.
B
Inflammation triggers the production of white blood cells.
C
Inflammation drops the pH of blood.
D
Inflammation raises the pH of blood.
3

A new herbal supplement is on the market that claims to build immunity and prevent illness. The best response to this claim is to

A
research the information using several sources before taking the supplement.
B
immediately begin the recommended regimen to stay healthy.
C
use the supplement when in close contact with others who are ill.
D
use half of a dose until more studies confirm the supplement’s effectiveness.
4

A few mold spores land on the skin but do not survive due to the lack of moisture and the presence of oxygen. These spores have been prevented from harming the body by which type of barrier?

A
biological
B
chemical
C
physical
D
mechanical
5

How does fever indicate that your body's immune system is doing its job?

A
Fever increases red blood cell production.
B
Fever raises the body's temperature to destroy harmful substances.
C
Fever triggers inflammation.
D
Fever causes the secretion of hormones that fight harmful substances.
6

What is the difference between B-cell lymphocytes and T-cell lymphocytes?

A
B cells regulate blood pH, and T cells regulate body temperature.
B
B cells are produced in the thymus, and T cells are produced in the bone marrow.
C
B cells engulf bacteria, and T cells carry bacteria to the lymph nodes.
D
B cells produce antibodies, and T cells destroy infected cells.
7

One function of the immune system is to attack the foreign cells to protect the body. In organ transplants, the body recognizes that the new organ is made of foreign cells. What kind of medicine would you give a patient to increase the chances of transplant success?

A
Medicine that makes the immune system less effective.
B
Medicine that makes the immune system more effective.
C
Medicine that allows the immune system to produce and secrete hormones.
D
Medicine that allows the immune system to regulate nerve responses.
8

Which type of barrier are coughing and sneezing?

A
psychological
B
chemical
C
biological
D
physical
9

Why is the action of phagocytes considered a nonspecific response?

A
It does not occur at any specific temperature.
B
It is not involved with the production of any specific type of lymphocyte.
C
It does not respond to any specific type of hormone.
D
It is not a response to a specific type of pathogen.
10

Vaccination is a process of injecting a dead or weakened form of a pathogen into the body. How does this help strengthen the immune system?

A
It allows the body to increase its internal temperature.
B
It allows the body to regulate the inflammatory response.
C
It allows the body to keep pathogen information for future infections.
D
It allows the body to increase its desire to eat healthy food.
11

Lupus, a condition in which the body attacks its own cells, is an example of

A
an allergic disorder.
B
an immunodeficiency disorder.
C
a cancer of the immune system.
D
an autoimmune disorder.
12

What do saliva, tears, and nasal mucus have in common?

A
All can be classified as biological barriers.
B
All contain Langerhans cells.
C
All can destroy bacterial cell walls.
D
All are part of the complement system.
13

A person who has a weakened immune system may not be able to fight against infection because

A
pathogens may enter the body and cause illness.
B
phagocytes may enter the body and cause illness.
C
normal cells crowd out unhealthy cells.
D
antibodies production is increased.
14

Vaccination is a process of injecting a dead or weakened form of a pathogen into the body. How does this help strengthen the immune system?

A
It allows the body to increase its internal temperature.
B
It allows the body to regulate the inflammatory response.
C
It allows the body to keep pathogen information for future infections.
D
It allows the body to increase its desire to eat healthy food.
15

Which are correct examples of physical (P), chemical (C), and biological (B) barriers?

A
P: complement system; C: saliva; B: coughing
B
P: coughing; C: saliva; B: complement system
C
P: coughing; C: sneezing; B: complement system
D
P: complement system; C: saliva; B: sneezing
16

How does fever indicate that your body's immune system is doing its job?

A
Fever increases red blood cell production.
B
Fever raises the body's temperature to destroy harmful substances.
C
Fever triggers inflammation.
D
Fever causes the secretion of hormones that fight harmful substances.
17

Which type of barrier are coughing and sneezing?

A
psychological
B
chemical
C
biological
D
physical
18

A scientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. Which biological component would be best to use as a model for the pill’s function?

A
bacteriocytes
B
phagocytes
C
complement system
D
antibodies
19

How does inflammation help the body fight off further infection?

A
Inflammation keeps harmful substances away from healthy cells.
B
Inflammation triggers the production of white blood cells.
C
Inflammation drops the pH of blood.
D
Inflammation raises the pH of blood.
20

One function of the immune system is to attack the foreign cells to protect the body. In organ transplants, the body recognizes that the new organ is made of foreign cells. What kind of medicine would you give a patient to increase the chances of transplant success?

A
Medicine that makes the immune system less effective.
B
Medicine that makes the immune system more effective.
C
Medicine that allows the immune system to produce and secrete hormones.
D
Medicine that allows the immune system to regulate nerve responses.

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