A Metabolic Process Allowing for Anaerobic Degradation of Benzoate to Acetate

question 16

Multiple Choice

A metabolic process allowing for anaerobic degradation of benzoate to acetate is diagrammed below. This metabolism can happen because

• A) benzoate contains a great deal of energy and ATP can be made.
• B) the catabolism of benzoate by the cell on the left produces hydrogen that is then used by the cell on the right to reduce sulfate.
• C) the catabolism of benzoate by the cell on the left produces hydrogen that is then used by a methanogen.
• D) the catabolism of benzoate to acetate releases so much energy that it overcomes the positive DG of H₂ production.
• E) the cell on the left swims away from the H₂ that it produces in order to balance the thermodynamics.

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Definitions:

Disjunct

In logic, an element of a disjunction; a proposition that forms one of the alternatives in a disjunction.

Disjunction

A procedure in computing that outputs true if a minimum of one input value is true.

Conjunct

An element of a conjunction, serving as a component in a compound sentence or statement formed by connecting two simple statements with a conjunction.

Conjunction

In logic, an operator that yields true only if both of its operands are true; in grammar, a word used to connect clauses or sentences.