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Quiz 15 - Glycolysis is a very inefficient reaction with...

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Question 1 Multiple Choice 0.5 points Which of the following statements about the light reactions of photosynthesis are true? Chlorophyll (and other pigments) absorb light energy, which excites electrons. The splitting of water molecules provides a source of electrons. ATP is generated by photophosphorylation. All of the above are true. Question 2 Multiple Choice 0.5 points The free energy for the oxidation of glucose to CO 2  and water is  - 686 kcal/mole and the free  energy for the reduction of NAD +  to NADH is  + 53 kcal/mole. Why are only two molecules  of NADH formed during glycolysis when it appears that as many as a dozen could be  formed?  Most of the free energy available from the oxidation of glucose is used in the  production of ATP in glycolysis.
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Unformatted text preview: Glycolysis is a very inefficient reaction, with much of the energy of glucose released as heat. Glycolysis consists of many enzymatic reactions, each of which extracts some energy from the glucose molecule. Most of the free energy available from the oxidation of glucose remains in pyruvate, one of the products of glycolysis. Question 3 Multiple Choice 0.5 points What are the products of the light reactions that are subsequently used by the Calvin cycle? oxygen and carbon dioxide carbon dioxide and RuBP ATP and NADPH electrons and photons Question 4 Multiple Choice 0.5 points Where do the catabolic products of fatty acid breakdown enter into the citric acid cycle? pyruvate acetyl CoA malate or fumarate succinyl CoA D,d,c,b....
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