Biology · Human Digestive System
What is the primary physiological function of dietary salt (NaCl) in the human body?
- 1To directly provide metabolic energy
- 2To produce hydrochloric acid required for food digestion✓
- 3To act as a precursor for fat-soluble vitamins
- 4To increase the oxygen-carrying capacity of blood
Correct answer
To produce hydrochloric acid required for food digestion
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