What two condition(s) must exist before the enzymes involved in nitrate (NO3- ) reduction are fully expressed?
A) Both nitrate and oxygen must be absent.
B) Nitrate must be absent, and oxygen must be present.
C) Nitrate must be present, and oxygen must be absent.
D) Both nitrate and oxygen must be present.
Correct Answer:
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Q1: The key enzyme of the acetyl- CoA
Q2: Most acetogens that produce and excrete acetate
Q3: Which of the following is NOT a
Q4: Beta oxidation involves the
A) synthesis of a
Q5: An example of syntrophy is
A) H2 production
Q7: The Entner- Doudoroff pathway is a variant
Q8: When facultative anaerobes are exposed to oxygen,
Q9: The first step of dissimilative nitrate reduction
Q10: Methanogenesis is an example of
A) photophosphorylation.
B) substrate-
Q11: What product is energy conserving during anaerobic
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