NUTRITION
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Passing of nutrients through the intestinal wall
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Mechanical and chemical breakdown of food
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Either A or B
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None of the above
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Detailed explanation-1: -Absorption refers to the movement of nutrients, water and electrolytes from the lumen of the small intestine into the cell, then into the blood.
Detailed explanation-2: -Explanation: Nutrients passing through the wall of intestine and reach the blood stream (or lymph stream) is called absorption.
Detailed explanation-3: -The metabolism of proteins and amino acids Amino acids are rapidly absorbed in the intestine. The intestinal wall is lined with specialized absorptive cells whose primary function is the transport of nutrients from the lumen of the gut into the portal circulation.
Detailed explanation-4: -As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.