Pantothenic acid

Definition

Pantothenic acid is a water-soluble B vitamin essential for synthesizing coenzyme A, which is vital in energy metabolism. It also plays a role in the synthesis of fatty acids, cholesterol, and acetylcholine.

5 Must Know Facts For Your Next Test

1. Pantothenic acid is found in almost all plant and animal-based foods, making deficiency rare.
2. It is crucial for the formation of coenzyme A, which aids in the Krebs cycle and energy production.
3. Deficiency symptoms can include fatigue, irritability, numbness, and muscle cramps.
4. Pantothenic acid supports adrenal function and helps produce stress-related hormones.
5. The recommended daily intake for adults is about 5 mg per day.

Review Questions

• What role does pantothenic acid play in energy metabolism?
• List at least two symptoms of pantothenic acid deficiency.
• How much pantothenic acid is recommended daily for adults?

Related terms

Coenzyme A: A molecule that plays a major role in metabolism by helping to convert food into energy.

Krebs Cycle:

A series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate.

Acetylcholine:

A neurotransmitter involved in many functions including muscle movement and memory.