biology

Essay specific features

 

Issue:

Science

 

Written by:

Marvin W

 

Date added:

January 25, 2016

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 350

 

Was viewed:

4087 times

 

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Essay content:

A protein is an organic compound that consists of aminio acids joined by peptide bonds. Pepsin is one of three principal protein- degrading enzymes in the digestive system the other two being chymotrypsin which catalyzes the hydrolysis of peptide bonds and trypsin that acts with the other proteins to break down dietary protein molecules to their peptides and amino acids which will be absorbed by the intestinal lining...
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Pepsin is synthesized in an inactive form in the stomach lining; it is necessary to convert the inactive enzyme and to maintain the optimum acidity (pH 1?3) for pepsin function. Secreting pepsin in the inactive form of pepsinogen helps to protect the cells of the gastric glands, and mucus helps protect the stomach lining from both pepsin and acid...
displayed 300 characters

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