Which of the Following Is NOT Known to Be a Vitamin

question 67

Multiple Choice

Which of the following is NOT known to be a vitamin for human beings?

• A)Cobalamin
• B)Ubiquinone
• C)Pyridoxine
• D)Pantothenic acid

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Definitions:

Pressure Values

Likely intended to be "Pressure Valves," which are mechanical devices that regulate or control the flow of a fluid by opening, closing, or partially obstructing passageways based on pressure.

Zener Diode

Specialty diode designed to reverse-bias conduct only after a specific voltage value is attained. Used in electronic voltage regulators.

Voltage Regulator

An electrical device designed to automatically maintain a constant voltage level, ensuring electrical stability.

Semiconductor

Material that can act as conductors or insulators depending on how its structure is arranged; elements that have four electrons in the valence shell.