The inflammatory response is called a general defense because
a. it responds in the same way to any kind of pathogen.
b. all the organ systems of the body are involved in it.
c. it kills every pathogen that gets into the body.
d. it is more effective than any of the body’s other responses to disease.
What is A
100
Which of the following diseases is caused by a virus?
a. chicken pox
b. tetanus
c. strep throat
d. tuberculosis
What is A
100
What important role do bacteria called decomposers play?
a. They return basic chemicals to the environment.
b. They slow down food spoilage.
c. They kill harmful bacteria.
d. They produce vitamins.
What is A
100
Colds and tuberculosis are both examples of ____________________ diseases, because they are caused by a living thing within the body.
a. parasites b. bacterial c. infectious
What is C
100
A fungus that is a parasite might feed on
a. a person’s skin.
b. a dead tree.
c. bread.
d. wet bathroom tiles.
What is A
200
Immunity is the body’s ability to
a. distinguish pathogens from one another.
b. destroy pathogens before they can cause disease.
c. fight disease with the inflammation response.
d. produce antigens.
What is B
200
Why are viruses like parasites?
a. They harm the cells they enter.
b. They multiply.
c. They use their own energy to develop.
d. They make their own food.
What is A
200
You have a cold, but your doctor will not give you an antibiotic, because
a. antibiotics do not kill viruses.
b. colds are not infectious.
c. antibiotics make colds worse.
d. antibiotics provide bacteria with food.
What is A
200
A person can become infected with pathogens by handling an object that has become ____________________, or has pathogens on it.
a. electrified b. contaminated c. cleaned
What is B
200
How do breathing passages help keep pathogens out of the body?
a. Chemicals kill some pathogens.
b. Mucus and cilia trap pathogens.
c. Phagocytes in the breathing passages destroy pathogens.
d. They produce antibodies that kill pathogens.
What is B
300
What type of white blood cells are part of the inflammatory response?
a. phagocytes
b. B cells
c. T cells
d. cilia
What is A
300
Which of the following statements does NOT describe an active virus?
a. It attaches to the host cell.
b. It takes over the host cell’s functions.
c. It “hides” in the host cell.
d. It destroys the host cell.
What is C
300
A chemical that kills bacteria or slows their growth is called a(n)
a. antibody.
b. antibiotic.
c. aspirin.
d. decongestant.
What is B
300
Infectious diseases are spread by contact with contaminated people and objects, with animals, and with
a. space sources b. aquatic sources c. environmental sources
What is C
300
A cut in the skin can lead to an infection because
a. it interferes with the immune system’s ability to fight disease.
b. it allows pathogens to get into the body.
c. the cut destroys the cilia that remove bacteria.
d. the cut kills phagocytes.
What is B
400
When a person’s own immune system produces antibodies in response to the presence of a pathogen, that person has
a. an allergic reaction.
b. passive immunity.
c. active immunity.
d. an antibiotic.
What is C
400
A hidden virus
a. cannot attach to a host cell.
b. becomes part of the host cell’s genetic material.
c. immediately takes over the cell’s functions.
d. attaches to but does not enter the cell.
What is B
400
A hidden virus
a. cannot attach to a host cell.
b. becomes part of the host cell’s genetic material.
c. immediately takes over the cell’s functions.
d. attaches to but does not enter the cell.
What is B
400
How are colds and flu usually spread?
a. by cold weather
b. through an animal bite
c. from pathogens that live naturally in soil
d. by direct or indirect contact with infected persons
What is D
400
Skin is part of the first line of defense against pathogens.
What is TRUE
500
Which of the following is NOT part of the inflammatory response?
a. White blood cells destroy pathogens.
b. Chemicals may cause a fever.
c. Swelling increases blood flow to the infected area.
d. Antibodies are produced.
What is D
500
Which statement about a virus’s coat is NOT true?
a. It protects the virus.
b. It contains protein.
c. It contains genetic material.
d. It helps the virus attach to its host.
What is C
500
Which statement about a virus’s coat is NOT true?
a. It protects the virus.
b. It contains protein.
c. It contains genetic material.
d. It helps the virus attach to its host.
What is C
500
An infectious disease is a disease that
a. is caught because the weather turns cold.
b. is caused by pathogens.
c. can be spread only by bacteria.
d. cannot be cured.
What is B
500
Lyme disease and rabies are both examples of diseases that can be spread by means of
a. an infected animal b. a fungus c. a protist