Which of the Following Statements Describes NAD⁺

question 54

Multiple Choice

Which of the following statements describes NAD⁺?

• A) NAD+ is reduced to NADH during glycolysis, pyruvate oxidation, and the citric acid cycle.
• B) NAD⁺ has more chemical energy than NADH.
• C) NAD⁺ is oxidized by the action of hydrogenases.
• D) NAD⁺ can donate electrons for use in oxidative phosphorylation.
• E) In the absence of NAD+, glycolysis can still function.

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Definitions:

Decomposition

The process by which organic substances are broken down into simpler organic or inorganic matter, primarily by microbial action.

Trophic Level

The position an organism occupies in a food chain, based on its feeding habits.

Tertiary Consumers

Organisms that occupy the top level in a food chain by feeding on secondary consumers; they are typically predators.

Autotrophs

Organisms that can produce their own food from inorganic substances using light or chemical energy such as plants and certain bacteria and algae.