BIO 191 BSU Douglas Chapter 7 (Test 2)Exams 100% Accurate!!

An autotroph is an organism that - ANSWERextracts energy from organic sources and relies on the energy produced by other organisms as an energy source. What processes are required for the complete oxidation of glucose? - ANSWERGlycolysis, pyruvate oxidation, and the Krebs cycle. What is NOT a product of glycolysis? - ANSWERCO2 (carbon dioxide) Glycolysis produces ATP by - ANSWERsubstrate-level phosphorylation. What is the role of NAD+ in the process of cellular respiration? - ANSWERIt functions as an electron carrier. The reactions of the Krebs cycle occur in the - ANSWERmatrix of the mitochondria. The electrons carried by NADH and FADH2 can be - ANSWERmoved between proteins in the inner membrane of the mitochondrion. What is NOT a true statement regarding cellular respiration? - ANSWERElectrons have a higher potential energy at the end of the process. The direct source of energy for the ATP produced by ATP synthase comes from - ANSWERa proton gradient. Anaerobic respiration - ANSWERyields less energy than aerobic respiration because other final electron acceptors have lower affinity for electrons than O2. What is the importance of fermentation to cellular metabolism? - ANSWERIt oxidizes NADH to NAD+ in the absence of O2.