Vinegar is typically produced in fed batch reactors because
Options
A. a fed batch reactor can be used to maintain low acetic acid concentrations
B. a fed batch reactor can be used to maintain low ethanol concentrations
C. acetic acid bacteria tend to ferment at high ethanol concentrations
D. all of the above
Correct Answer
a fed batch reactor can be used to maintain low ethanol concentrations
More questions
1. Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?
Options
A. Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions
B. The rules governing oxidation and reduction apply only in vitro, and not in vivo
C. Electrons always go from reductants with high redox potentials to oxidants with low redox potentials
Correct Answer: Discontinuous variation is influenced by the environment
3. The intervention in the communication system of nematodes offer several possibilities of bio control. Which of the following(s) play(s) a very important role in the host recognition?