Which degrades doesn't carbon compounds? Krebs cycle, Glycolysis, respiration, fermenation, Calvin Benson cyc

Answer 1

Well, your question is a little ambiguous, but I think you're asking which of the pathways listed do not result in carbon compounds. Off the pathways you listed, only the Calvin-Benson cycle creates organic carbon compounds out of gaseous CO2. The others are all degredations (or digestions), and release CO2 (or other CO2 containing compounds).