What happens in glycolysis if oxygen and pyruvic acid are absent and NADH + H⁺ cannot transfer its cargo of hydrogen to pyruvic acid?

Correct Answer: B

Rationale: glycolysis stops if NAD⁺ is limited and NADH can't unload hydrogen ; it doesn't continue , pyruvic acid isn't the issue , ATP doesn't increase .

Correct Answer: B

Rationale: absorptive is anabolic with energy storage, postabsorptive is catabolic with glucose sparing ; others mismatch states.

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.