Edited Invalid date
18.3 Coenzymes in Metabolic Pathways
The synthesis of new proteins for the body and nitrogen atoms for the synthesis of compounds such as nucleotides is one of the major roles of the proteins.
The stomach and small intestine are home to some of the world's most abundant and diverse sources of human genes.
Polypeptides move out of the stomach into the small intestine, where other proteases, such as trypsin and chymotrypsin, complete the hydrolysis of the peptides to amino acids.
oxidation and reduction reactions are involved in several metabolism reactions.
Reduction is associated with the gain of H atoms, whereas oxidation is associated with the loss of H atoms.
There is a difference between a coenzyme that gains hydrogen ion and electrons and one that loses hydrogen ion and electrons.
Reduction reactions need energy.
Leaving one H+.
Two electrons and a hydrogen ion are added to the NAD+.
The carbon-oxygen double bonds (C " O) are created in the oxidation of alcohols to aldehydes and ketones.
An example of an oxidation-reduction reaction is the oxidation of alcohol in the body to ethanal.
Riboflavin is comprised of ribitol and flavin.
When two hydrogen atoms are added to the FAD, it is reduced to FADH2.
An oxidation reaction converts a carbon-carbon single bond to a carbon-carbon double bond.
The conversion of the carbon-carbon single bond in succinate to a double bond in fumarate is an example of a reaction from the citric acid cycle.
An important function of coenzyme A is to prepare small acyl groups for reactions.
FAD is reduced.
The carbon- carbon double bond is created when the FAD coenzyme participates in oxidation reactions.
NADH + H+ is reduced.
The carbon-oxygen double bond is created when the NAD+ coenzyme participates in oxidation reactions.
acetyl Try Practice Problems 18.13 coenzyme A is involved in the transfer of acetyl groups.
The coenzyme A is involved in the following coenzymes.
Review flashcards and saved quizzes
Getting your flashcards
Privacy & Terms