[Campbell Biology P.957] Which statement accurately describes a characteristic of stomach dy... | Practice Question

Which statement accurately describes a characteristic of stomach dynamics or the resulting chyme?

  • A: The stomach lining replaces its epithelial cells approximately every week.
  • B: Churning mixes stomach contents every 2 minutes, facilitating digestion.
  • C: Chyme is an acidic, nutrient-rich broth formed in the stomach.
  • D: The stomach typically moves all its contents into the small intestine at once after a meal.

Explanation

The text explicitly states that 'what began as a recently swallowed meal becomes the acidic, nutrient-rich broth known as chyme' in the stomach. Other options contain inaccuracies regarding the frequency of epithelial cell replacement every three days, not weekly , churning frequency every 20 seconds, not every 2 minutes , and chyme passage regulation one squirt at a time, not all at once .