Question 1

Infection with HIV is listed as the cause of death for an AIDS patient.

Accepted Answer

A) True 
 B)False  False

Question 2

HIV strains may differ by 10% within one person and by 35% in people around the globe.This is due to

Accepted Answer

A)  both cellular and antibody-mediated responses. 
B)  the fact that HIV inserts its genome into the host genome. 
C)  HIV's high rate of mutation. 
D)  the fact that HIV targets T cells. 
E)  the fact that most people do not die from HIV infection. 
A)  both cellular and antibody-mediated responses. 
B)  the fact that HIV inserts its genome into the host genome. 
C)  HIV's high rate of mutation. 
D)  the fact that HIV targets T cells. 
E)  the fact that most people do not die from HIV infection. C

Question 3

The drugs that treat malaria can be used prophylactically,or before infection.

Accepted Answer

A) True 
 B)False  True

Question 4

A disease is called an epidemic if people all over the world have the same disease.

Accepted Answer

A) True 
 B)False

Question 5

The vast majority of new HIV infections are in people under the age of 15.

Accepted Answer

A) True 
 B)False

Question 6

List and describe the opportunistic diseases that individuals in category C of AIDS usually die from.

Accepted Answer

1.Pneumocystis jiroveci pneumonia: a fun

Question 7

What are fimbriae,and what is their function?

Accepted Answer

A)  They are long, thin appendages that allow bacteria to be motile (move). 
B)  They are stiff fibers that allow bacteria to adhere to surfaces. 
C)  They are elongated, hollow appendages that allow for the transfer of DNA. 
D)  They are small, circular pieces of DNA that frequently contain genes for antibiotic resistance. 
E)  They are a thick, gelatinous substance surrounding some bacterial cells that allow them to stick to surfaces and protect them from phagocytic white blood cells. 
A)  They are long, thin appendages that allow bacteria to be motile (move). 
B)  They are stiff fibers that allow bacteria to adhere to surfaces. 
C)  They are elongated, hollow appendages that allow for the transfer of DNA. 
D)  They are small, circular pieces of DNA that frequently contain genes for antibiotic resistance. 
E)  They are a thick, gelatinous substance surrounding some bacterial cells that allow them to stick to surfaces and protect them from phagocytic white blood cells.

Question 8

How many different "lines" of antibiotics against TB are there?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  five or more 
A)  one 
B)  two 
C)  three 
D)  four 
E)  five or more

Question 9

Which category of disease classification is described as having more cases than expected in a given period of time?

Accepted Answer

A)  epidemic 
B)  outbreak 
C)  pandemic 
D)  opportunistic infection 
E)  none of these 
A)  epidemic 
B)  outbreak 
C)  pandemic 
D)  opportunistic infection 
E)  none of these

Question 10

How is Mycobacterium tuberculosis spread?

Accepted Answer

A)  airborne droplets 
B)  contaminated food or water 
C)  sexual intercourse 
D)  IV drug abuse 
E)  blood transfusions 
A)  airborne droplets 
B)  contaminated food or water 
C)  sexual intercourse 
D)  IV drug abuse 
E)  blood transfusions

Question 11

MRSA can be fatal.

Accepted Answer

A) True 
 B)False

Question 12

What types of cells does HIV infect?

Accepted Answer

A)  helper T cells and macrophages 
B)  B cells and red marrow cells 
C)  liver cells and cardiac muscle cells 
D)  epithelial cells and eosinophils 
E)  basophils and killer T cells 
A)  helper T cells and macrophages 
B)  B cells and red marrow cells 
C)  liver cells and cardiac muscle cells 
D)  epithelial cells and eosinophils 
E)  basophils and killer T cells

Question 13

List and explain the events that occur during the reproductive cycle of an HIV virus.

Accepted Answer

1.Attachment: HIV binds to receptors on

Question 14

When was the first documented case of HIV in the United States?

Accepted Answer

A)  1884 
B)  1924 
C)  1959 
D)  1969 
E)  1982 
A)  1884 
B)  1924 
C)  1959 
D)  1969 
E)  1982

Question 15

SARS is thought to have arisen in China due to the consumption of civets.

Accepted Answer

A) True 
 B)False

Question 16

Of the following modes of HIV transmission,which is the least common mode and rare in many countries?

Accepted Answer

A)  transfusions of infected blood 
B)  vaginal/rectal intercourse with an infected person 
C)  needle sharing among IV drug users 
D)  babies born to HIV-infected women 
E)  oral-genital contact with an infected person 
A)  transfusions of infected blood 
B)  vaginal/rectal intercourse with an infected person 
C)  needle sharing among IV drug users 
D)  babies born to HIV-infected women 
E)  oral-genital contact with an infected person

Question 17

In which phase of an HIV infection is a person typically asymptomatic?

Accepted Answer

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

Question 18

What do MDR TB and MRSA have in common?

Accepted Answer

A)  Both are transmitted by mosquitoes. 
B)  Both cause tuberculosis. 
C)  Both are multidrug-resistant bacteria. 
D)  Both have seen their numbers of infections decline dramatically in recent years. 
E)  Both are viruses. 
A)  Both are transmitted by mosquitoes. 
B)  Both cause tuberculosis. 
C)  Both are multidrug-resistant bacteria. 
D)  Both have seen their numbers of infections decline dramatically in recent years. 
E)  Both are viruses.

Question 19

Why might an HIV test be negative within the first two to three weeks of an HIV infection?

Accepted Answer

A)  because there is no HIV in the blood 
B)  because there are no detectable levels of HIV antibodies in the blood 
C)  because there are no symptoms 
D)  because the CD4 T-cell count is above 500 cells/mm3 
E)  because there are no opportunistic infections yet 
A)  because there is no HIV in the blood 
B)  because there are no detectable levels of HIV antibodies in the blood 
C)  because there are no symptoms 
D)  because the CD4 T-cell count is above 500 cells/mm3 
E)  because there are no opportunistic infections yet

Question 20

Most people with malaria exhibit chills and fevers every 48 to 72 hours.This is due to

Accepted Answer

A)  reinfection with new Plasmodium. 
B)  the bursting of red blood cells in the body. 
C)  the formation of Plasmodium gametes within the body. 
D)  the fusion of the male and female Plasmodium gametes to form new organisms. 
E)  waves of activity from the body's B and T cells. 
A)  reinfection with new Plasmodium. 
B)  the bursting of red blood cells in the body. 
C)  the formation of Plasmodium gametes within the body. 
D)  the fusion of the male and female Plasmodium gametes to form new organisms. 
E)  waves of activity from the body's B and T cells.

Exam 8: Infectious Diseases

Infection with HIV is listed as the cause of death for an AIDS patient.

HIV strains may differ by 10% within one person and by 35% in people around the globe.This is due to

The drugs that treat malaria can be used prophylactically,or before infection.

A disease is called an epidemic if people all over the world have the same disease.

The vast majority of new HIV infections are in people under the age of 15.

List and describe the opportunistic diseases that individuals in category C of AIDS usually die from.

What are fimbriae,and what is their function?

How many different "lines" of antibiotics against TB are there?

Which category of disease classification is described as having more cases than expected in a given period of time?

How is Mycobacterium tuberculosis spread?

MRSA can be fatal.

What types of cells does HIV infect?

List and explain the events that occur during the reproductive cycle of an HIV virus.

When was the first documented case of HIV in the United States?

SARS is thought to have arisen in China due to the consumption of civets.

Of the following modes of HIV transmission,which is the least common mode and rare in many countries?

In which phase of an HIV infection is a person typically asymptomatic?

What do MDR TB and MRSA have in common?

Why might an HIV test be negative within the first two to three weeks of an HIV infection?

Most people with malaria exhibit chills and fevers every 48 to 72 hours.This is due to

Exploring Life and Science

Chemistry of Life

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Biology and Technology

Human Evolution

Ecology and the Nature of Ecosystems

Human Interactions With the Biosphere

Filters