Question 1

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

Question 2

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 prescribed 
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 prescribed

Question 3

There currently is no effective cure for AIDS.

Accepted Answer

A) True 
 B)False

Question 4

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 5

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. 
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.

Question 6

Prokaryotic cells do not possess DNA.

Accepted Answer

A) True 
 B)False

Question 7

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. 
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.

Question 8

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

Question 9

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. 
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.

Question 10

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

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

Describe the causative agents and transmission of tuberculosis.

Accepted Answer

Tuberculosis is caused by the bacterium

Question 13

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

Question 14

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. 
A)  phospholipids 
B)  DNA 
C)  RNA 
D)  peptidoglycan 
E)  All of these are found in eukaryotic cells.

Question 15

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. 
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.

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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

Question 18

People can become resistant to antibiotics.

Accepted Answer

A) True 
 B)False

Question 19

There is no point to taking antibiotics for a cold.

Accepted Answer

A) True 
 B)False

Question 20

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 infections 
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 infections

Exam 8: Infectious Diseases

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

Which of the following is an unwise use of antibiotics?

There currently is no effective cure for AIDS.

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?

How does HIV know which cells to infect?

Prokaryotic cells do not possess DNA.

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

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

Why aren't viruses considered living organisms?

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

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

Describe the causative agents and transmission of tuberculosis.

Which of the following diseases is considered an emerging disease?

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

An emerging disease is one that

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

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

People can become resistant to antibiotics.

There is no point to taking antibiotics for a cold.

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

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