1
Maximum absorption of short-chain fatty acids produced by bacteria occurs in the
EXPLANATION
Nutrient Absorption Mechanisms across Rumen,
- Short-Chain Fatty Acid (SCFA) Dynamics in Monogastrics:
- In simple-stomached domestic animals (horses, pigs, dogs) and humans, unabsorbed dietary polysaccharides, resistant starches, and soluble fibers pass into the large intestine.
- Anaerobic microbial fermentation in the cecum and Colon produces SCFAs (acetate, propionate, butyrate).
- The colonic mucosal epithelium is specifically specialized for the rapid active and passive absorption of SCFAs via sodium-coupled monocarboxylate transporters (SMCT1) and non-ionic diffusion, fueling colonocyte metabolism and reclaiming fluid and electrolytes.
- nalysis:
- (Colon): Correct anatomical site of maximal SCFA production and absorption.
Correct option: (4) Colon
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