Define the process of digestion of fats, Biology

Assignment Help:

Define the Process of Digestion of Fats?

The enzyme in human gut which is responsible for fat digestion is 'lipase', Lipase is secreted by both stomach and pancreas. In stomach, the dietary lipids gel liquidized in presence of heat and gastric contractions. Gastric lipase can only hydrolyze 30% of triglycerides comprising short and medium chain length. Hence, the lipolytic activity of stomach is not important. Only milk fat which contains some short and medium chain fatty acids tends to be hydrolyzed. These short chain fatty acids can then get absorbed through stomach wall into portal vein. Mostly diets have fats which provide long chain fatty acids. Long chain Salty acids entirely depend on emulsification by bile in gut. The pancreatic juice and the bile are secreted together through common bile duct in the duodenum. Bile emulsifies fat into hydrophilic miscelles making lipase more efficacious to act. Pancreatic lipase is specific to hydrolyze p1imm-y ester linkages at carbon position 1 and 3 of glycerol in a triglyceride. After this action, mixture of products is obtained for absorption in jejunum. The products are - glycerol, fatty acids, monoacylglycerol and diacylglycerol. PhosphoLipases act on phospholipids giving glycerol, fatty acid, lysolecithin etc., while cholesteryl esterase acts on esterifies cholesterol to give free cholesterol and fatty acids. Let us now know how after digestion these products are handled for absorption.


Related Discussions:- Define the process of digestion of fats

fat digestion requires two steps, Fat digestion requires two steps? What a...

Fat digestion requires two steps? What are the steps and what enzymes are used to accomplish each step?

Define the mechanism of evolution, A few statements about the mechanism of ...

A few statements about the mechanism of evolution are made. Mark the correct statements.   (i)  Evolution happens at the individual level as well as population level. (ii

Explain gum tragacanth, Gum Tragacanth  Gum tragacanth, the exudation o...

Gum Tragacanth  Gum tragacanth, the exudation of Astragalus species, is defined as the "dried gummy exudate" obtained from Astragalus gummifer Labillardiere. Gum tragacanth is

Define oven - nutritional biochemistry, Define Oven - Nutritional Biochemis...

Define Oven - Nutritional Biochemistry? Oven is a general term used to describe a chamber or enclosed compartment for heating, baking, or roasting food, as in a stove, or for f

Define about traumatic needles, Define about Traumatic needles Traumat...

Define about Traumatic needles Traumatic needles are needles with holes or eyes which are supplied to the hospital separate from their suture thread. The suture must be thread

What is meant by the law of use and disuse, What is meant by the law of use...

What is meant by the law of use and disuse and by the law of the transmission of acquired characteristics? As per to the law of use and disuse the characteristics of a body var

Bacterial diseases-anthrax, Anthrax Synonym              :    Wool sor...

Anthrax Synonym              :    Wool sorter’s disease Species affected    :    Cattle, sheep, goats, pig, horse and majority of the mammals. Fowls are resistant to anthr

#amphibia, amphibia class characteristics

amphibia class characteristics

What are plasmids, What are plasmids? The Plasmids are circular DNA mol...

What are plasmids? The Plasmids are circular DNA molecules present in the genetic material of some bacteria. They may perhaps contain genes responsible for bacterial resistance

Sarcodina, general character of class sarcodina

general character of class sarcodina

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd