Lipid digestion, Biology

Lipid Digestion

Digestion of fats is also similar in both invertebrates and vertebrates. Lipases are the - enzymes that hydrolyse fats. A single lipase can catalyse many steps in the breakdown of fat. The vertebrate pancreas secrete an enzyme lipase but before it breaks down fat, some detergent-like action is needed to emulsify the fat droplets. Bile salts from the liver, lecithin and cholesterol form miscelles and do this job. They reduce the surface tension at the fat-water inter phase in a slightly alkaline medium and tiny emulsification droplets of fat are formed. Then the lipase begins to digest the emulsified droplets.

The resultant fatty acids and monoglycerates are kept in solution by help of bile salts again and are finally absorbed. Glycerol is water soluble and easily absorbed and metabolised. Fat like butter is absorbed directly through the intestinal epithelium without hydrolysis.

Posted Date: 1/15/2013 5:17:11 AM | Location : United States







Related Discussions:- Lipid digestion, Assignment Help, Ask Question on Lipid digestion, Get Answer, Expert's Help, Lipid digestion Discussions

Write discussion on Lipid digestion
Your posts are moderated
Related Questions
Determine Indicators used in monitoring and surveillance? Various simple indicators may be used such as: 1) Weight-for-height 2) Body mass index (weight in kg/square of h

Explain process of Selection of taxonomic characters Selection of taxonomic characters Eventually classification systems may be based almost entirely on direct study of th

Bond specificity Some  enzymes  act  on  a particular  bond  (glycosidic,  peptide,  ester  etc.). Examples:  pepsin,  trypsin,  chymotrypsin  etc. are  all  only  acting  on

advantages and disadvantages of protozoa

describe polymorphism in lysosomes in short

Which of the following is true of energy? a. It can be transferred from one form to another with 100 percent efficiency. b. It can be created from nothing. c. It can be stored i

describe the diversity in the feeding habits and locomotion of annelids

Tidal energy The periodic rise and fall of water level of sea is called tides which are caused by gravitational effect of moon combined with the rotation of the earth. This var

Explain Healthcare Burden OF HEART DISEASES? CAD and its complications use up a substantial portion of the scarce healthcare resource of the country. It has been reported that

What is aves?