Glycolysis and the Krebs Cycle
Quiz by Hayden Koller
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21 questions
Show answers
- Q1What molecule from food is the primary reactant for glycolysisGlucoseStearic AcidProteinFructose20s
- Q2How many 3 carbon Pyruvate molecules are made from a single glucose?421320s
- Q3(Refer to Diagram) Does the process of glycolysis require an input of energy?Yes it requires the input of energyNo it can occur spontaneously20s
- Q4(refer to the diagram) Why did the author put PGAL at the top of the diagram?PGAL has a higher chemical stabilityPGAL has more kinetic energy due to the input of 2 ATPPGAL has more potential energy due to the input of 2 ATPPGAL was put there for purely aesthetic reasons20s
- Q5How many Net ATP are produced through glycolysis602420s
- Q6What molecule serves as an electron acceptor during Glycolysis?NADHNADP+NAD+NADPH20s
- Q7Does Pyruvate have more or less Potential Energy than Glucose?More; 4 ATP molecules are spent turning PGAL into PyruvateLess; 4 ATP molecules are made when PGAL becomes Pyruvate20s
- Q8Where in the cell does the link reaction take place?Inner matrix of the MitochrondriaCytoplasmInner membrane cristaeOuter membrane of the Mitochnodria20s
- Q9Is the pyruvate molecule likely to move across the mitochondrial membrane by diffusion?Yes,Pyruvate is nonpolar&would move past the polar membraneYes,Pyruvate is polar &would move past the polar membraneNo,Pyruvate is polar &would move past the polar membraneNo,Pyruvate is nonpolar&would move past the polar membrane20s
- Q10What molecule is removed from Pyruvate when it is decarboxylated during the link reaction?Carbon Dioxide (CO2)HydrogenOxygen Gas (O2)Methane (CH4)20s
- Q11Coenzyme-A (CoA) carries the remainder of the pyruvate molecule to the site of the Krebs Cycle. What is the name of the carboxylated pyruvate?PyruvateCoenzyme-A (CoA)NADHAcetyl (acetate)20s
- Q12Are any ATP made or lost during the link reaction?NoYes20s
- Q13How many acetyl-CoA, CO2, and NADH molecules are produced per glucose in the Link Reaction?1 acetyl-CoA, 1 CO2, 1 NADH4 acetyl-CoA, 4 CO2, 4 NADH1 acetyl-CoA, 1 CO2, 0 NADH2 acetyl-CoA, 2 CO2, 2 NADH20s
- Q14Where in the cell does the Krebs Cycle take place?Outer Membrane of the mitochondriaInner Matrix of the mitochondriaInner Membrane CristaeCytoplasm20s
- Q15Is oxygen required in the Krebs Cycle?YesNo20s
