Practice questions from the book!
Overview human metabolism Recap
Carbohydrates
,Proteins
Fat/triglycerides
Glycolysis is the central pathway in human metabolism
Metabolic processes are linked:
Intermediates of glucose catabolism are building blocks
for many anabolic pathways:
• other carbohydrates
• Lipids
• amino acids
• DNA/RNA)
,The big three! Here metabolism is decided!
Three major metabolites
Metabolic roads to Acetyl-CoA
Major fates of fuels in the fed state
• free energy carriers:
ATP, GTP, NAD(P)H, FADH
• building blocks:
12 “precursor metabolites”
‒ Macromolecule synthesis
‒ ATP synthesis
Amino acids can’t be stored
, Homeostasis: ATP produced as needed > only very little storage
Burning food: oxidation by O2, energy caught as ATP, rest lost as heat