True/False
Indicate whether the sentence or statement is true or
false.
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1.
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Pathogens known as viruses must get inside living cells to
reproduce.
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2.
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Antibodies are produced by White blood cells called B
cells.
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3.
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The inner core of a virus contains genetic material
(DNA/RNA).
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4.
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When a virus invades a living cell, its genetic material takes over the
cell’s functions.
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Multiple Choice
Identify the letter of the choice that best
completes the statement or answers the question.
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5.
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An example of an infectious disease caused by a virus is
a. | cancer | b. | AIDS | c. | Arthritus | d. | Food Poisoning |
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6.
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How are colds and flu usually spread?
a. | by cold weather | b. | through an animal bite | c. | by coming into
contact with pathogens that live naturally in soil | d. | by person-to-person transfer or contact with
contaminated objects |
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7.
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What type of cells help you become immune to a virus?
a. | White blood cells | c. | memory T cells | b. | B cells | d. | All of the
above |
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8.
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Which of the following is part of the body’s immune
response?
a. | White blood cells ,T cells and B cells, and antibodies | c. | itching | b. | Antibiotics | d. | sneezing |
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9.
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The the protein docker molecules on viruses allow the virus to
a. | get into the body | c. | attach to a specific kind of cell and release genetic material into
the cell | b. | get into a variety of cells. | d. | make proteins by
itself |
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10.
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How does HIV damage the immune system?
a. | by destroying white blood cells | c. | by damaging
antibodies | b. | it causes pnemonia | d. | by attacking the nervous system |
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11.
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Chicken pox, the common cold, herpes, AIDS, and the flu are all casued by
a. | viruses | c. | protists | b. | fungi | d. | bacteria |
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12.
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A characteristic that viruses share with living organisms is
a. | their size | b. | their protein coat. | c. | their ability to
invade host cells. | d. | their ability to
multiply. |
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13.
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A virus’s proteins are important because they
a. | contain genetic material. | b. | provide nutrients for the
host | c. | provide energy for the virus. | d. | help the virus attach to its
host. |
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14.
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After a virus latches on to a host cell it
a. | injects its DNA into the host cell | c. | dies | b. | replicates the host
cell’s DNA |
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15.
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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. |
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16.
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What directly provides energy for a virus?
a. | food | b. | its host | c. | the
sun | d. | a parasite |
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17.
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Which of the following stimulates a person’s body to produce
antibodies that destroy viruses?
a. | antibiotic | b. | vaccine | c. | toxin | d. | endospore |
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Matching
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a. | digestive system | e. | endocrine system | b. | respiratory system | f. | muscle system | c. | immune
system | g. | excretory
system | d. | reproductive system | h. | nervous system |
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18.
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moves the body and its perts
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19.
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receives, interprets, and reponds to information from outside and inside the
body
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20.
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produces cells that carry genes from parent to offspring
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21.
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take in, break down, and absorb food molecules
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22.
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fight disease causing organisms and cancer cells
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23.
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take in oxygen and release CO2
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24.
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eliminate waste
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25.
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produce changes within the body with glands and hormones
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Essay (Write your answer on the back of the answer sheet.)
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26.
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Explain how a virus reproduces and multiplies.
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