Question 1

Infectious diseases differ from genetic diseases in that infectious diseases are usually contagious.

Accepted Answer

A) True 
 B)False

Question 2

A disease-causing organism that can spread from one organism to another is said to be

Accepted Answer

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

Question 3

Which of the following would be an example of a specific line of defense against an infectious agent?

Accepted Answer

A)  The skin acts as a barrier to infection by the agent. 
B)  Macrophages engulf the invading agent in the affected tissue. 
C)  Mucus membranes in the lungs trap the invading pathogens. 
D)  B cells stick to the invading pathogen's surface. 
A)  The skin acts as a barrier to infection by the agent. 
B)  Macrophages engulf the invading agent in the affected tissue. 
C)  Mucus membranes in the lungs trap the invading pathogens. 
D)  B cells stick to the invading pathogen's surface.

Question 4

Viruses aren't classified as living organisms because

Accepted Answer

A)  viruses don't possess a nucleus. 
B)  viruses aren't capable of replicating themselves without a host cell. 
C)  viruses don't always contain DNA as their genetic material. 
D)  viruses don't contain any proteins. 
A)  viruses don't possess a nucleus. 
B)  viruses aren't capable of replicating themselves without a host cell. 
C)  viruses don't always contain DNA as their genetic material. 
D)  viruses don't contain any proteins.

Question 5

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 6

T cells undergo further maturation in the ________ gland.

Accepted Answer

A)  adrenal 
B)  thyroid 
C)  thymus 
D)  pituitary 
A)  adrenal 
B)  thyroid 
C)  thymus 
D)  pituitary

Question 7

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. This technique, which does not require exposure to antigens, is an example of

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 8

Which of the following requires 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 9

Which of the following has contributed to widespread antibiotic resistance?

Accepted Answer

A)  doctors under-prescribing antibiotics that would eradicate cold-causing bacteria 
B)  patients finishing their antibiotic prescription even though they feel better 
C)  farmers using an abundance of antibiotics to treat feedlot animals 
D)  chefs cooking meat thoroughly in restaurants 
A)  doctors under-prescribing antibiotics that would eradicate cold-causing bacteria 
B)  patients finishing their antibiotic prescription even though they feel better 
C)  farmers using an abundance of antibiotics to treat feedlot animals 
D)  chefs cooking meat thoroughly in restaurants

Question 10

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 11

Cells that directly terminate antigens are called

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 12

What would be an action that public health officials could take to reduce the risk of West Nile virus infection?

Accepted Answer

A)  provide people with low-cost vaccines for the virus 
B)  encourage people to wash their hands frequently and cover their cough 
C)  require pet owners to vaccinate their dogs and cats 
D)  work with natural resource managers to spray areas where mosquitoes breed 
A)  provide people with low-cost vaccines for the virus 
B)  encourage people to wash their hands frequently and cover their cough 
C)  require pet owners to vaccinate their dogs and cats 
D)  work with natural resource managers to spray areas where mosquitoes breed

Question 13

A mother, father, and son live together in the same house. The mother passes a cold to her son. The son then passes the cold to his father. If the virus has not mutated, should the mother be worried about catching the cold again from her husband?

Accepted Answer

A)  No, memory cells will help the mother's immune system to quickly eliminate the virus. 
B)  Yes, although the mother has produced some antibodies to the cold virus, it can still overwhelm her immune system. 
C)  No, the T cells that are left from the previous infection can kill off any virus. 
D)  Yes, the immune system will treat the cold virus like a new infectious agent. 
A)  No, memory cells will help the mother's immune system to quickly eliminate the virus. 
B)  Yes, although the mother has produced some antibodies to the cold virus, it can still overwhelm her immune system. 
C)  No, the T cells that are left from the previous infection can kill off any virus. 
D)  Yes, the immune system will treat the cold virus like a new infectious agent.

Question 14

Why is it important to keep your leftover chicken salad in the refrigerator?

Accepted Answer

A)  Potential viruses in the chicken salad thrive under warm conditions. 
B)  Spores released by harmful bacteria only germinate at room temperature. 
C)  Infectious bacteria like Salmonella reproduce more quickly at room temperature. 
D)  Chicken salad loses its flavor if stored at room temperature. 
A)  Potential viruses in the chicken salad thrive under warm conditions. 
B)  Spores released by harmful bacteria only germinate at room temperature. 
C)  Infectious bacteria like Salmonella reproduce more quickly at room temperature. 
D)  Chicken salad loses its flavor if stored at room temperature.

Question 15

A vaccine is 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 16

Which of the following may be an effective method to 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 17

Disease-causing organisms are called

Accepted Answer

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

Question 18

Molecules such as viruses and bacteria that are foreign to the host and stimulate the immune system to react are called ________.

Accepted Answer

The answer of Molecules such as viruses and bacteria that...

Question 19

Which of the following are important elements that comprise cell-mediated immunity?

Accepted Answer

A)  B cells 
B)  cytotoxic T cells 
C)  plasma cells 
D)  complement proteins 
A)  B cells 
B)  cytotoxic T cells 
C)  plasma cells 
D)  complement proteins

Question 20

-Refer to the figure to answer the following question: Which of the following steps in replication is the virus dependent upon the use of its own reverse transcriptase?

Accepted Answer

A)  Step 1 
B)  Step 2 
C)  Step 3 
D)  Step 4 
A)  Step 1 
B)  Step 2 
C)  Step 3 
D)  Step 4

Exam 19: Vaccinations: Protection and Prevention or Peril? Immune System

Infectious diseases differ from genetic diseases in that infectious diseases are usually contagious.

A disease-causing organism that can spread from one organism to another is said to be

Which of the following would be an example of a specific line of defense against an infectious agent?

Viruses aren't classified as living organisms because

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?

T cells undergo further maturation in the ________ gland.

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. This technique, which does not require exposure to antigens, is an example of

Which of the following requires a host cell because they aren't able to make proteins on their own?

Which of the following has contributed to widespread antibiotic resistance?

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?

Cells that directly terminate antigens are called

What would be an action that public health officials could take to reduce the risk of West Nile virus infection?

A mother, father, and son live together in the same house. The mother passes a cold to her son. The son then passes the cold to his father. If the virus has not mutated, should the mother be worried about catching the cold again from her husband?

Why is it important to keep your leftover chicken salad in the refrigerator?

A vaccine is usually composed of

Which of the following may be an effective method to prevent the spread of botulism?

Disease-causing organisms are called

Molecules such as viruses and bacteria that are foreign to the host and stimulate the immune system to react are called ________.

Which of the following are important elements that comprise cell-mediated immunity?

-Refer to the figure to answer the following question: Which of the following steps in replication is the virus dependent upon the use of its own reverse transcriptase?

Can Science Cure the Common Cold? Introduction to the Scientific Method

Are We Alone in the Universe? Water, Biochemistry, and Cells

Is It Possible to Supplement Your Way to Better Health?

Fat: How Much is Right for You? Enzymes, Metabolism, and Cellular Respiration

Life in the Greenhouse: Photosynthesis and Global Warming

Cancer: DNA Synthesis, Mitosis, and Meiosis

Are You Only as Smart as Your Genes? Mendelian and Quantitative Genetics

DNA Detective: Complex Patterns of Inheritance and DNA Fingerprinting

Genetically Modified Organisms: Gene Expression, Mutation, and Cloning

Where Did We Come From? The Evidence for Evolution

An Evolving Enemy: Natural Selection

Who Am I? Species and Races

Prospecting for Biological Gold: Biodiversity and Classification

Is the Human Population Too Large? Population Ecology

Conserving Biodiversity: Community and Ecosystem Ecology

Where Do You Live? Climate and Biomes

Organ Donation: Tissues Organs and Organ Systems

Clearing the Air: Respiratory Cardiovascular and Excretory Systems

Sex Differences and Athleticism: Endocrine Skeletal and Muscular Systems

Is There Something in the Water? Reproductive and Developmental Biology

Attention Deficit Disorder: Brain Structure and Function

Feeding the World: Plant Structure and Growth

Growing a Green Thumb: Plant Physiology

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