What is the central molecule in fat metabolism?

Correct Answer: B

Rationale: Acetyl CoA as central in fat metabolism ; glucose is carbs, fatty acids and glycerol are components.

Correct Answer: B

Rationale: neural signals, nutrient signals, and GI hormones (e.g., CCK, insulin) ; others (A, C, D) are not specified.

Correct Answer: B

Rationale: Text defines the core as organs in skull, thoracic, and abdominal cavities ; not limbs , muscles , or head only .

Correct Answer: A

Rationale: Metabolism converts food to energy, builds essential molecules, and removes wastes, supporting survival.

Correct Answer: B

Rationale: The Food Pyramid guides healthy eating by showing which foods should be consumed most (base) and least (top).