Some Escherichia Coli Mutants Can Use Nitrate (NO) as an Electron

question 29

Essay

Some Escherichia coli mutants can use nitrate (NO) as an electron acceptor under anaerobic conditions. A researcher wants to test the hypothesis that such a mutant obtained in a laboratory can obtain energy from succinate as an electron donor. Her proposed hypothesis is based on energy production from the redox pairs succinate/fumarate and nitrate/nitrite. Predict her calculations and determine if succinate oxidation to fumarate coupled to nitrite (NO) formation can yield some energy for growth as evidenced by an overall - $\Delta$ G°' of the coupled reactions.

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Definitions:

Middle Term

In logic, the term that appears in both premises of a syllogism but not in the conclusion, used to link the major and minor terms.

Propositions

Statements or assertions expressing a judgement or an opinion that can be either true or false.

Middle Term

In the context of a syllogism in logic, the middle term is the term that appears in both premises but not in the conclusion, serving as a link between the two terms that do appear in the conclusion.

Major Premise

In deductive reasoning, the overarching statement or proposition from which a logical conclusion is drawn.