Metabolism

P W Emery, King's College London, London, UK © 2005 Elsevier Ltd. All rights reserved.

Amino acids are generated within the body from three different sources. They enter the body from protein in the diet, and nonessential (dispensable) amino acids are synthesized from other metabolic intermediates, but by far the largest quantities of free amino acids arise from the breakdown of tissue proteins. Similarly, there are three metabolic fates for amino acids. Amino acid disposal is dominated by protein synthesis, but amino acids are also oxidized to carbon dioxide, water, and urea, or they may be metabolized to other small molecules. The pathways involved in each of these processes are considered, followed by a

Oxidation to urea

protein v acids ^ protein

Conversion to other compounds

Figure 1 Overview of amino acid metabolism.

discussion of the movement of amino acids between different compartments within the body (Figure 1).

Was this article helpful?

0 0
The Most Important Guide On Dieting And Nutrition For 21st Century

The Most Important Guide On Dieting And Nutrition For 21st Century

A Hard Hitting, Powerhouse E-book That Is Guaranteed To Change The Way You Look At Your Health And Wellness... Forever. Everything You Know About Health And Wellness Is Going To Change, Discover How You Can Enjoy Great Health Without Going Through Extreme Workouts Or Horrendous Diets.

Get My Free Ebook


Post a comment