Unit Test — Unit test Answers

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Which virus has a structure that includes an outer lipid bilayer that is studded with proteins?

A
papilloma virus
B
rabies virus
C
influenza virus
D
bacteriophage virus
23

What is the difference between B-cell lymphocytes and T-cell lymphocytes?

A
B cells regulate blood pH, and T cells regulate body temperature.
B
B cells are produced in the thymus, and T cells are produced in the bone marrow.
C
B cells engulf bacteria, and T cells carry bacteria to the lymph nodes.
D
B cells produce antibodies, and T cells destroy infected cells.
24

The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healthy mice. Those mice started to show signs of a heightened immune response. According to Koch’s postulates what is the next step in determine whether the bacteria is pathogenic?

A
Classify the bacteria as a noncommunicable disease.
B
Classify the bacteria as a communicable disease.
C
Reisolate it, and determine if it is the original unknown bacteria.
D
Treat the original 20 individuals with antibiotics.

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