Discuss the mechanisms of absorption of nutri | vedclass

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(D) Absorption is the process by which the end products of digestion pass through the intestinal mucosa into the blood or lymph.$1$. Simple Diffusion:

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(D) Absorption is the process by which the end products of digestion pass through the intestinal mucosa into the blood or lymph.$1$. Simple Diffusion: Substances like glucose,amino acids,and some electrolytes like $Cl^-$ ions move from higher concentration to lower concentration.$2$. Facilitated Transport: Substances like fructose and some amino acids are absorbed with the help of carrier proteins.$3$. Active Transport: This occurs against the concentration gradient and requires energy $(ATP)$. Examples include amino acids,glucose,and $Na^+$ ions.$4$. Water Transport: Water is absorbed by osmosis based on the osmotic gradient.$5$. Fatty acids and glycerol: Being insoluble,they are first incorporated into small droplets called micelles,which move into the intestinal mucosa and are reformed into chylomicrons.

Discuss the mechanisms of absorption of nutrients in the human digestive system.

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