Answer to Question #283118 in General Chemistry for Ahlam

Question

name the metabolic reactions (pathways) of carbohydrates and amino acids metabolism activated in liver in absorptive period (less than 1 hour after meal)

Answer 1

Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis, in the liver, enter into the Kreb's cycle and oxidative phosphorylation to generate ATP.

After the proteins in the diet have been hydrolyzed, the free amino acids join the non-essential amino acid synthesized in the liver and the amino acids recycled from the body's own proteins, constituting the amino acid pool now available for metabolic processes. Most of the amino acid pool is used for the synthesis of protein and other nitrogen-containing compounds such as DNA bases, neurotransmitters, hormones, etc

Oxidative deamination is the first step to breaking down the amino acids so that they can be converted to sugars. The process begins by removing the amino group of the amino acids. The amino group becomes ammonium as it is lost and later undergoes the urea cycle to become urea, in the liver.