Biochemistry ACS Exam Questions and Answers

Biochemistry ACS Exam Questions and Answers Glycolysis Ans- Near -universal pathway in which glucose molecule is oxidized to two molecules of pyruvate, with energy conserved as ATP and NADH Glycolytic breakdown Ans- Glucose is the sole source of metabolic energy in some mammalian tissues and cell types Fermentation Ans- general form for the anaerobic degradation of glucose or other organic nutrients to obtain energy, conserved as ATP Preparatory phase Ans- ATP i s invested to convert glucose to fructose 1,6 -bisphosphate. C3 & C4 broken to yield two molecules of triose phosphate. Glycolysis: Preparatory phase Ans- 1. Glucose phosphorylated at OH on C -6, ATP used *hexokinase* 2. glucose 6 -phosphate thus formed is converted to fructose 6 -phosphate. *phosphohexose isomerase* 3. Fructose 6 -phosphate is phorylated at C -1 to yield Fructose 1,6-bisphosphate, ATP used *PFK -1* 4. Fructose 6 -phosphate splits to 2 three carbon molecules, DHAP and GAP