Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Absorption of amino acids and peptides
Generally, the dietary proteins are almost comp!etely digested to their constituent amino acids and these are rapidly absorbed from the intestine into the portal blood. Some of the dipeptides are hydrolyzed by peptidases located in the absorptive cells so that only amino acids are released into the portal blood. D-amino acids are absorbed by simple diffusion but the L-amino acids (occurring in foods) require a carrier system in the absorption.
The inechanism by which amino acids are absorbed is conceptually identical to that of monosaccharides. The luminal plasma membrane of the absorptive cell bears at least four sodium-dependent amino acid transporters (one each for acidic, basic, neutral and aromatic amino acids). Each system transports amino acids that are structurally similar. These transporters bind amino acids only after binding sodium. The fully loaded transporter then undergoes a conformational change that dumps sodium and the amino acid into the cytoplasm, followed by its reorientation back to the original form. Thus, absorption of amino acids is also absolutely dependent on the electrochemical gradient of sodium across the epithelium. The energy dependent carrier system also involves vitamin B6 (pyridoxal phosphate) during the transport of amino acids.
LAN LAN stands for Local Area Network. This kind of network consists of a set of interconnected computers that are not geographically spread out over a large area. For exa
Q. What is the major cell organelle involved in cell digestion and what are the properties of that organelle that enable it to do the task? The organelles accountable for intra
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
Catastrophism Once-popular belief which events in the history of earth had occurred in the past a sudden events and by processes different from those operating today. The periods
In which environments do bacteria live? Bacteria can be found in various environments throughout the planet. There are bacteria in the air, in fresh water, on the surface, in t
Chemical Weathering The rocks while getting disintegrated may also undergo chemical change. Water is an important agent in bringing about chemical changes due to dissolution or
Q. What is inharmonious ecological interaction? The negative or Inharmonious ecological interaction is that in which at least one of the participating beings is harmed. Q.
Explain Ventricular septal defects VSD Chsude Technique ? Ventricular septal defects are closed on cardiopulmonary bypass. Approach is through median stemotomy. Ascending aort
Give the causative organism and symptoms of Bacillary Dysentery • Bacillary dysentery is caused by Shigella sp. (Shigella sonnei, S. dysenteraei). Incubation period is
living organisms and their excretory products
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd