From Which Vitamin Is NAD⁺/NADH Produced in the Body

question 27

Multiple Choice

From which vitamin is NAD⁺/NADH produced in the body?

• A) vitamin C
• B) vitamin D
• C) niacin
• D) vitamin E
• E) biotin

---

Definitions:

Revision Block

A part of the drawing documentation where changes and revisions are recorded.

Millimeter

A unit of length in the metric system equal to one thousandth of a meter.

Abbreviation

A shortened form of a word or phrase used to simplify communication.

Castings

The process of pouring liquid metal into a mold, where it solidifies into a specific shape.