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The Immune System Answers

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1
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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.
2
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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.
4

Which type of barrier are coughing and sneezing?

A
psychological
B
chemical
C
biological
D
physical
5

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.
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.
8

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.
9

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.
10

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.

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The Immune System Answers — FL-2000310-Biology 1