Which of the Following Is True of Pantothenic Acid

question 18

Multiple Choice

Which of the following is true of pantothenic acid?

• A) It is the only B vitamin not involved in energy metabolism.
• B) It is relatively stable in most food-preparation methods.
• C) It is known to be toxic in large doses.
• D) It is involved in more than 100 steps in the synthesis of certain compounds.
• E) It is found in a few select foods.

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Definitions:

T Tubules

Transverse tubules; system of inward extensions of the muscle fiber plasma membrane.

ATP

The energy necessary for metabolic processes in cells is transported by a molecule called adenosine triphosphate, or ATP.

Action Potential

An electrical signal resulting from depolarization of the plasma membrane in a neuron or muscle cell. Compare with resting potential.

Bone Mineral

Inorganic substances, primarily hydroxyapatite crystals, that give bones their hardness and strength.