Assignment Help - homework help

  Digestion in small intestine

Digestion in small intestine:

The proteolytic enzymes that exist in the intestinal juice are amino peptidase, enterokinase, prolidase and di and tri peptidases.

Enterokinase is an enzyme which activates trypsin in the existence of calcium. Aminopeptidases are able of removing one amino acid from the N terminal end of the peptide. They can’t hydrolyze the linkages of di-peptides or if the N terminal amino acid is proline. Prolidases are enzymes which hydrolyze linkages including proline.

So through the concerted action of all the above enzymes, proteins are spilt down to di and tri-peptides. Di and tri peptidases exist in the intestinal mucosal cells or in the absorptive cells cleave them to amino acids.

Absorption of amino acids:

Amino acids and small peptides which are absorbed will arrive at liver by the portal circulation.

Naturally taking place L-amino acids are absorbed actively, when D-amino acids are absorbed passively. Absorption of amino acids are identical to those of carbohydrates and they require a sodium ions and carrier.

Amino acids are absorbed through glutathione cycle.  The steps that involved in glutathione cycle are

1. Glutathione joints with amino acids to form ϒ -glutamyl amino acid and cysteinyl glycine.
2. ϒ-glutamyl amino acid is transported and hydrolyzed to oxo proline and L.amino acid, that is absorbed.
3. Cysteinyl glycine is cleaved to cysteine and glycine.
4. Oxoproline is transformed back to glutamate.
5. Glutamate, cysteine and glycine combine jointly and form glutathione.

Factors affecting absorption:

1. Dinitro phenol/cyanide decrease the absorption of amino acids.

2. Amino acids compete along with one other for absorption. High concentrations of one amino acid decrease the absorption of the others.

3. Glutathione is required to absorb the amino acids through glutathione cycle.

 

Latest technology based Biology Online Tutoring Assistance

Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Digestion in small intestine homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Digestion in small intestine, project ideas and tutorials. We provide email based Digestion in small intestine homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Digestion in small intestine. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Biology homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Digestion in small intestine. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
Home | Company Overview | Services | Discover Q&A | Sitemap | Contact Us | T & C | Refund Policy | Copyright Policy | Blog | Q&A | Directory

©TutorsGlobe All rights reserved 2022-2023.