NSG 6101 MICRO BIO EXAM 1 Q/A / NSG6101 MICRO BIO EXAM 1 Q/A: GRADED A | 100% CORRECT |SOUTH UNIVERSITY

NSG 6101 MICRO BIO EXAM 1
Question 1
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What is the result of successful communication between rhizobia and their plant
hosts?
Select one:
a. Rhizobia consume the plant tissue as an energy and carbon source, causing
disease in the plant.
b. The plant consumes rhizobiaas an energy source and carbon, destroying the
invading bacteria.
c. The rhizobia invade the plant root and begin to fix nitrogen with the assistance
of the plant.
d. The plant supplies organic forms of nitrogen to the rhizobia.
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The correct answer is: The rhizobia invade the plant root and begin to fix nitrogen
with the assistance of the plant.
Question 2
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Most bacterial and archaeal cells divide by

, Select one:
a. mitosis.
b. meiosis.
c. binary fission.
d. All of the choices are correct.
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The correct answer is: binary fission.
Question 3
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Most known microorganisms maintain their internal pH
Select one:
a. near neutral (pH 7).
b. near their optimum growth pH.
c. slightly acidic (pH 4–6).
d. slightly alkaline (pH 8–10).
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The correct answer is: near neutral (pH 7).
Question 4
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