2nd October 2019


How Lipids are transported in the body?

Lipid transport function of lipoproteins in blood plasma. Fatty acid and cholesterol transport in plasma lipoproteins evolved in the context of an open circulatory system in which lipoprotein particles are secreted directly into the blood and have ready access to cells in various tissues.

Likewise, how does the intestinal absorption of lipids differ from the absorption of glucose and amino acids?

Fat digestion occurs in the small intestine, and the digestion of proteins and carbohydrates occurs in the stomach. Fats are absorbed into the cells as fatty acids and monoglycerides but are then modified for absorption into the blood; amino acids and glucose are not modified further.

Where are large lipids packaged in chylomicrons for absorption?

Beginning in the endoplasmic reticulum and continuing in the Golgi, triglyceride is packaged with cholesterol, lipoproteins and other lipids into particles called chylomicrons. Remember where this is occurring - in the absorptive enterocyte of the small intestine.

How are lipids digested?

The digestion of certain fats begins in the mouth, where short-chain lipids break down into diglycerides because of lingual lipase. The fat present in the small intestine stimulates the release of lipase from the pancreas, and bile from the liver enables the breakdown of fats into fatty acids.
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