Chapter 7.9: Catabolism of Proteins and Fats Flashcards
After deamination occurs what is the last step of the catabolism of proteins?
o A series of reactions converts the carbon chain that remains into a molecule that enters glycolysis of the Krebs cycle
After o Fats are broken down into fatty acids plus glycerol what is the next step of the catabolism of fatty acids?
o Enzymes remove the 2-carbon acetyl groups from the end of each fatty acid until the entire fatty acid is converted into acetyl groups
Where are fatty acids oxidized?
mitochondrial matrix
When ATP levels are too high what happens to acetyl-CoA?
o When ATP levels are high, acetyl-CoA is channeled into fatty acid synthesis
What is the first step of the catabolism of fatty acids?
o Fats are broken down into fatty acids plus glycerol
What is the removal of an amino group; part of the degradation of proteins into compounds that can enter the Krebs cycle?
deamination
What is the first step of the catabolism of proteins?
o Proteins are first broken down into their individual amino acids
After o Enzymes remove the 2-carbon acetyl groups from the end of each fatty acid until the entire fatty acid is converted into acetyl groups what is the last step of the catabolism of proteins?
o Each acetyl group is combined with coenzyme A to form acetyl-CoA. Process known as β oxidation
After o Proteins are first broken down into their individual amino acids what is the next step of the catabolsim of proteins?
deamination occurs
Define deamination
the removal of an amino group; part of the degradation of proteins into compounds that can enter the Krebs cycle
How much ATP does the respiration of a 6-carbon fatty acid produce?
36 molecules of ATP
