Question 1

What cells directly terminate antigens?

Accepted Answer

A)  suppressor T cells 
B)  helper T cells 
C)  cytotoxic T cells 
D)  cytotoxic B cells 
A)  suppressor T cells 
B)  helper T cells 
C)  cytotoxic T cells 
D)  cytotoxic B cells

Question 2

What are disease-causing organisms called?

Accepted Answer

A)  microbes 
B)  parasites 
C)  contagious 
D)  pathogens 
A)  microbes 
B)  parasites 
C)  contagious 
D)  pathogens

Question 3

How can injecting a person with a killed-bacteria vaccine protect that individual from a disease?

Accepted Answer

A)  The proteins of the killed bacteria remain in the body, and live bacteria later prey on them instead of live tissues. 
B)  The proteins of the killed bacteria bind with receptors in the body so that live bacteria can't bind with them later. 
C)  The proteins of the killed bacteria stimulate the production of antibodies, which can be utilized later in response to infection. 
D)  The proteins of the killed bacteria give the person a mild form of the disease, which conditions the body not to respond to later infection. 
A)  The proteins of the killed bacteria remain in the body, and live bacteria later prey on them instead of live tissues. 
B)  The proteins of the killed bacteria bind with receptors in the body so that live bacteria can't bind with them later. 
C)  The proteins of the killed bacteria stimulate the production of antibodies, which can be utilized later in response to infection. 
D)  The proteins of the killed bacteria give the person a mild form of the disease, which conditions the body not to respond to later infection.

Question 4

Which immune system protects the body from its own cancerous cells?

Accepted Answer

A)  cell-mediated immune system 
B)  antibody-mediated immune system 
C)  enzyme immune system 
D)  inflammatory immune system 
A)  cell-mediated immune system 
B)  antibody-mediated immune system 
C)  enzyme immune system 
D)  inflammatory immune system

Question 5

U.S. health officials are considering different ways of preparing for a future worldwide epidemic of human influenza that could be derived from a form of the disease that infects birds (avian flu). Which actions would be useful in preventing a future influenza epidemic?

Accepted Answer

A)  Inject helper T cells into healthy people to boost immune systems. 
B)  Inoculate infected people with a vaccine against the pathogen. 
C)  Give antibiotics to people with mild symptoms. 
D)  Ask people with flu symptoms to stay at home. 
A)  Inject helper T cells into healthy people to boost immune systems. 
B)  Inoculate infected people with a vaccine against the pathogen. 
C)  Give antibiotics to people with mild symptoms. 
D)  Ask people with flu symptoms to stay at home.

Question 6

What are molecules such as viruses and bacteria that are foreign to the host and stimulate the immune system to react?

Accepted Answer

The answer of What are molecules such as viruses and...

Question 7

By what process do bacteria reproduce?

Accepted Answer

A)  competitive fusion 
B)  meiosis 
C)  plasmid replication 
D)  binary fission 
A)  competitive fusion 
B)  meiosis 
C)  plasmid replication 
D)  binary fission

Question 8

Which specific defense mechanism defends primarily against antigens in body fluids?

Accepted Answer

A)  cell-mediated immune system 
B)  antibody-mediated immune system 
C)  inflammatory response 
D)  fever 
A)  cell-mediated immune system 
B)  antibody-mediated immune system 
C)  inflammatory response 
D)  fever

Question 9

Some RNA viruses, such as HIV, require what enzyme (two words) to convert the viral RNA genome into a DNA version?

Accepted Answer

reverse tr

Question 10

What cells of the immune system will help the body respond more quickly if the infectious agent is encountered again?

Accepted Answer

A)  complement 
B)  cytotoxic 
C)  helper 
D)  memory 
A)  complement 
B)  cytotoxic 
C)  helper 
D)  memory

Question 11

Which pathogens require a host cell because they aren't able to make proteins on their own?

Accepted Answer

A)  blue-green algae 
B)  bacteria 
C)  protozoans 
D)  viruses 
A)  blue-green algae 
B)  bacteria 
C)  protozoans 
D)  viruses

Question 12

A young woman with rhinovirus goes to the doctor to see if she can get a prescription for antibiotics. How would the antibiotics affect the rhinovirus?

Accepted Answer

A)  Most rhinovirus cells would be killed by the antibiotics. 
B)  The rhinovirus would spread more quickly, because the antibiotics would eliminate competing pathogens. 
C)  Rhinovirus reproduction would be slowed by the antibiotics, allowing the immune system to attack the virus. 
D)  The rhinovirus would not be affected by the antibiotics. 
A)  Most rhinovirus cells would be killed by the antibiotics. 
B)  The rhinovirus would spread more quickly, because the antibiotics would eliminate competing pathogens. 
C)  Rhinovirus reproduction would be slowed by the antibiotics, allowing the immune system to attack the virus. 
D)  The rhinovirus would not be affected by the antibiotics.

Question 13

What description applies to a disease-causing organism that can spread from one organism to another?

Accepted Answer

A)  contagious 
B)  infectious 
C)  parasitic 
D)  microscopic 
A)  contagious 
B)  infectious 
C)  parasitic 
D)  microscopic

Question 14

Which feature is common in a virus?

Accepted Answer

A)  cell wall 
B)  nucleus 
C)  capsid 
D)  plasmid 
A)  cell wall 
B)  nucleus 
C)  capsid 
D)  plasmid

Question 15

A strategy currently in clinical trials to treat Alzheimer's disease is to infuse patients with antibodies, which then target the pathological protein produced in the disease, leading to its removal. What type of immune reaction applies to this technique?

Accepted Answer

A)  an autoimmune response 
B)  active immunization 
C)  passive immunization 
D)  cell-mediated immunity 
A)  an autoimmune response 
B)  active immunization 
C)  passive immunization 
D)  cell-mediated immunity

Question 16

Many bacteria carry plasmids containing bacterial genes that are easily and rapidly spread through an entire bacterial colony. Why are plasmids of particular concern to humans?

Accepted Answer

A)  They carry genes for antibiotic resistance. 
B)  They carry genes that code for substances that are toxic to humans. 
C)  They carry genes that code for flagellae. 
D)  They carry genes that enable bacteria to metabolize glucose. 
A)  They carry genes for antibiotic resistance. 
B)  They carry genes that code for substances that are toxic to humans. 
C)  They carry genes that code for flagellae. 
D)  They carry genes that enable bacteria to metabolize glucose.

Question 17

-Refer to the figure to answer the following question: A disease that prevented the continued development of lymphocytes in the bone might cause which action?

Accepted Answer

A)  It would lead to a reduced cell-mediated response. 
B)  It would lead to an incomplete development of T cells. 
C)  It would prevent the formation of T4 cells. 
D)  It would lead to a reduced antibody-mediated response. 
A)  It would lead to a reduced cell-mediated response. 
B)  It would lead to an incomplete development of T cells. 
C)  It would prevent the formation of T4 cells. 
D)  It would lead to a reduced antibody-mediated response.

Question 18

Which method may effectively prevent the spread of botulism?

Accepted Answer

A)  Do not eat food that has been sitting at room temperature for hours. 
B)  Avoid contact with infected individuals who are regularly sneezing. 
C)  Thoroughly boil or cook all food products. 
D)  Thoroughly wash hands before eating any food. 
A)  Do not eat food that has been sitting at room temperature for hours. 
B)  Avoid contact with infected individuals who are regularly sneezing. 
C)  Thoroughly boil or cook all food products. 
D)  Thoroughly wash hands before eating any food.

Question 19

What is a vaccine usually composed of?

Accepted Answer

A)  macrophages that fight infection 
B)  a hormone that boosts immunity 
C)  inactivated disease-causing microbes 
D)  antibodies that recognize invading microbes 
A)  macrophages that fight infection 
B)  a hormone that boosts immunity 
C)  inactivated disease-causing microbes 
D)  antibodies that recognize invading microbes

Question 20

Which is a part of the body's nonspecific defense mechanism?

Accepted Answer

A)  skin 
B)  T cells 
C)  B cells 
D)  antibodies 
A)  skin 
B)  T cells 
C)  B cells 
D)  antibodies

Exam 20: Vaccination: Protection and Prevention or Peril Immune System,

What cells directly terminate antigens?

What are disease-causing organisms called?

How can injecting a person with a killed-bacteria vaccine protect that individual from a disease?

Which immune system protects the body from its own cancerous cells?

U.S. health officials are considering different ways of preparing for a future worldwide epidemic of human influenza that could be derived from a form of the disease that infects birds (avian flu). Which actions would be useful in preventing a future influenza epidemic?

What are molecules such as viruses and bacteria that are foreign to the host and stimulate the immune system to react?

By what process do bacteria reproduce?

Which specific defense mechanism defends primarily against antigens in body fluids?

Some RNA viruses, such as HIV, require what enzyme (two words) to convert the viral RNA genome into a DNA version?

What cells of the immune system will help the body respond more quickly if the infectious agent is encountered again?

Which pathogens require a host cell because they aren't able to make proteins on their own?

A young woman with rhinovirus goes to the doctor to see if she can get a prescription for antibiotics. How would the antibiotics affect the rhinovirus?

What description applies to a disease-causing organism that can spread from one organism to another?

Which feature is common in a virus?

A strategy currently in clinical trials to treat Alzheimer's disease is to infuse patients with antibodies, which then target the pathological protein produced in the disease, leading to its removal. What type of immune reaction applies to this technique?

Many bacteria carry plasmids containing bacterial genes that are easily and rapidly spread through an entire bacterial colony. Why are plasmids of particular concern to humans?

-Refer to the figure to answer the following question: A disease that prevented the continued development of lymphocytes in the bone might cause which action?

Which method may effectively prevent the spread of botulism?

What is a vaccine usually composed of?

Which is a part of the body's nonspecific defense mechanism?

Can Science Cure the Common Cold Introduction to the Scientific Method

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Cancer: DNA Synthesis, Mitosis, and Meiosis

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DNA Detective: Complex Patterns of Inheritance and Dna Profiling

Genetically Modified Organisms: Gene Expression, Mutation,

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Who Am I Species and Races

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Organ Donation: Tissues and Organs

Binge Drinking: the Digestive and Urinary Systems

Clearing the Air: Respiratory and Cardiovascular Systems

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Is There Something in the Water Reproductive and Developmental Biology

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Growing a Green Thumb: Plant Physiology

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