Question 1

How does HIV know which cells to infect?

Accepted Answer

A)   It can infect any cell it comes in contact with.
B)   It can only infect cells on surfaces of the body where the temperature is lower.
C)   It can only infect cells that are actively growing and dividing.
D)   It can infect cells with particular surface receptors.
E)   It only infects cells that line the reproductive tract.F) A) and D)
G) B) and D)

Question 2

There currently is no effective cure for AIDS.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following molecules is not found in eukaryotic cells?

Accepted Answer

A)   phospholipids
B)   DNA
C)   RNA
D)   peptidoglycan
E)   All of these are found in eukaryotic cells.F) None of the above
G) D) and E)

Question 4

In the "kitchen-sink model" for CD4 T-cell loss,what does the sink's drain represent?

Accepted Answer

A)   the destruction of CD4 T cells by the virus
B)   the production of new CD4 T cells
C)   the amplification of the virus in the blood
D)   the destruction of the virus by the immune system
E)   the wide variety of possible opportunistic infectionsF) A) and C)
G) A) and B)

Question 5

Prokaryotic cells do not possess DNA.

Accepted Answer

A) True 
 B)False

Question 6

Patient X has 150 CD4 T cells/mm3.What phase of an HIV infection is this patient in?

Accepted Answer

A)   acute phase 
B)   chronic phase 
C)   AIDS 
D)   transmission phase 
E)   terminal phase F) B) and C)
G) A) and C)

Question 7

Where does the life cycle of the Plasmodium protist take place?

Accepted Answer

A)   in mosquitoes
B)   in humans
C)   in both mosquitoes and humans
D)   in snails
E)   in pigsF) C) and D)
G) B) and C)

Question 8

The envelope of the HIV virus is actually part of the host cell plasma membrane.

Accepted Answer

A) True 
 B)False

Question 9

There is no point to taking antibiotics for a cold.

Accepted Answer

A) True 
 B)False

Question 10

An HIV vaccine would be the cure for AIDS that science has been looking for.

Accepted Answer

A) True 
 B)False

Question 11

Once SARS appeared in China,how long did it take for it to reach nine other countries/provinces via air travel?

Accepted Answer

A)   three months
B)   six months
C)   one year
D)   two years
E)   five yearsF) B) and C)
G) A) and E)

Question 12

Which of the following is an unwise use of antibiotics?

Accepted Answer

A)   discontinuing antibiotics when you feel better
B)   not taking antibiotics for a viral infection
C)   not saving unused antibiotics
D)   not skipping doses of antibiotics
E)   taking antibiotics only to treat the infection for which they were prescribedF) A) and E)
G) A) and B)

Question 13

An emerging disease is one that

Accepted Answer

A)   is newly recognized in the last two decades.
B)   has suddenly caused an epidemic.
C)   is now present on multiple continents.
D)   can infect both humans and animals.
E)   can be transmitted in multiple ways.F) All of the above
G) B) and E)

Question 14

Describe the causative agents and transmission of tuberculosis.

Accepted Answer

Tuberculosis is caused by the bacterium ...

Question 15

Why aren't viruses considered living organisms?

Accepted Answer

A)   because they do not replicate
B)   because they do not possess genetic material
C)   because they are not composed of cells
D)   because they lack the metabolic machinery to acquire and use nutrients
E)   None of these are correct.F) All of the above
G) None of the above

Question 16

Which of the following factors is/are helping increase the incidence of emerging diseases?

Accepted Answer

A)   global warming
B)   expansion of range by insect vectors
C)   abuse of antibiotics
D)   poor implementation of vaccination programs
E)   All of these factors are helping increase the incidence of emerging diseases.F) A) and D)
G) B) and D)

Question 17

There are normally one or two cases of measles per month in a particular city.However,in the month of September,there were 15 cases.Is this an epidemic?

Accepted Answer

A) True 
 B)False

Question 18

Which of the following diseases is considered an emerging disease?

Accepted Answer

A)   SARS
B)   H1N1
C)   H5N1
D)   strep throat
E)   All of these are considered emerging diseases.F) B) and C)
G) A) and B)

Question 19

If an epidemic is confined to a local area,it is usually called

Accepted Answer

A)   an opportunistic infection.
B)   a pandemic.
C)   an outbreak.
D)   a slow infection.
E)   a chronic infection.F) A) and C)
G) A) and E)

Question 20

People can become resistant to antibiotics.

Accepted Answer

A) True 
 B)False

Exam 8: Infectious Diseases

Describe the causative agents and transmission of tuberculosis.

Correct AnswerverifiedTuberculosis is caused by the bacterium ...View AnswerShow Answer

The envelope of the HIV virus is actually part of the host cell plasma membrane.

Correct AnswerverifiedShow Answer

Which of the following factors is/are helping increase the incidence of emerging diseases?

Correct AnswerverifiedShow Answer

How does HIV know which cells to infect?

Correct AnswerverifiedShow Answer

Which of the following molecules is not found in eukaryotic cells?

Correct AnswerverifiedShow Answer

People can become resistant to antibiotics.

Correct AnswerverifiedShow Answer

Once SARS appeared in China,how long did it take for it to reach nine other countries/provinces via air travel?

Correct AnswerverifiedShow Answer

An emerging disease is one that

Correct AnswerverifiedShow Answer

Where does the life cycle of the Plasmodium protist take place?

Correct AnswerverifiedShow Answer

An HIV vaccine would be the cure for AIDS that science has been looking for.

Correct AnswerverifiedShow Answer

If an epidemic is confined to a local area,it is usually called

Correct AnswerverifiedShow Answer

There currently is no effective cure for AIDS.

Correct AnswerverifiedShow Answer

Which of the following diseases is considered an emerging disease?

Correct AnswerverifiedShow Answer

There is no point to taking antibiotics for a cold.

Correct AnswerverifiedShow Answer

Which of the following is an unwise use of antibiotics?

Correct AnswerverifiedShow Answer

Prokaryotic cells do not possess DNA.

Correct AnswerverifiedShow Answer

Why aren't viruses considered living organisms?

Correct AnswerverifiedShow Answer

In the "kitchen-sink model" for CD4 T-cell loss,what does the sink's drain represent?

Correct AnswerverifiedShow Answer

There are normally one or two cases of measles per month in a particular city.However,in the month of September,there were 15 cases.Is this an epidemic?

Correct AnswerverifiedShow Answer

Patient X has 150 CD4 T cells/mm3.What phase of an HIV infection is this patient in?

Correct AnswerverifiedShow Answer

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Tuberculosis is caused by the bacterium ...
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Patient X has 150 CD4 T cells/mm³.What phase of an HIV infection is this patient in?

Correct Answer
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