Instructions Question 1 05 out of 05 points The final electron acceptor at the

Instructions question 1 05 out of 05 points the final

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Instructions Question 1 0.5 out of 0.5 points The final electron acceptor at the end of the electron transport chain is ___ resulting in formation of ___. Answer Selected Answer: oxygen; water Response Oxygen is the final electron acceptor in the electron transport chain. Once oxygen
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Feedback: accepts electrons, it combines with H + to form a water molecule, as a by-product. Question 2 0.5 out of 0.5 points Yeast is used to make bread rise by producing ___ during fermentation. Answer Selected Answer: CO 2 gas Response Feedback: Yeasts are good examples of microorganisms that generate ethyl alcohol and CO 2 when they carry out fermentation. When yeast is used to leaven bread, the CO 2 makes the bread rise. Question 3 0 out of 0.5 points Glycolysis and the citric acid cycle are similar in that they both produce ________. Answer Selected Answer: NADH Response Feedback: NAD+ accepts hydrogen atom and becomes NADH in both reactions. NADH will be used in the last step of cellular respiration, the e-transport chain. ATP is also produced in both reactions. Question 4 0 out of 0.5 points ATP is invested in glycolysis to ________.
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Answer Selected Answer: add a phosphate group to glucose Response Feedback: During glycolysis, a six carbon glucose molecule is broken down into two, three carbon molecules of pyruvate. ATP is invested to break the stable glucose molecule apart. The bond between the third and fourth carbon is broken but no carbons are released. Question 5 0.5 out of 0.5 points A product of glycolysis is ______ Answer Selected Answer: pyruvate Response Feedback: During glycolysis a six carbon glucose molecule is broken down into two, three carbon molecules of pyruvate. Question 6 0.5 out of 0.5 points Cellular respiration is the opposite of what other cellular process? Answer Selected Answer: photosynthesis Response Feedback: During cellular respiration carbohydrates are oxidized forming carbon dioxide, in photosynthesis that carbon dioxide is reduced producing carbohydrates (glucose) thus, these processes are opposites.
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Question 7 0.5 out of 0.5 points How many molecules of C 2 acetyl group are produced from six molecules of glucose 6 C 6 H 12 O 6 during aerobic respiration? Answer Selected Answer: 12 Response Feedback: Each molecule of glucose produces 2 molecules of C 2 acetyl groups. Six molecules of glucose would therefore produce 12 C 2 acetyl groups. Question 8 0 out of 0.5 points As electrons are passed down the electron transport chain, the energy released is used immediately to ________. Answer Selected Answer: move phosphate groups to ATP synthase Response Feedback: The energy released by oxidation-reduction is used to pump H + from the mitochondrial matrix into the intermembrane space located between the outer and inner membrane of a mitochondrion. The pumping of H + into the intermembrane space establishes an unequal distribution of H + ; in other words, there are many H + in the intermembrane space and few in the matrix of a mitochondrion. Question 9 0.5 out of 0.5 points What must pyruvic acid be converted into before it can enter the citric acid cycle?
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Answer Selected Answer: acetyl CoA Response Feedback: Pyruvate is oxidized, and a CO 2 is given off. A C 2 acetyl group is attached to coenzyme A forming acetyl-CoA Question 10 0 out of 0.5 points The products of fermentation depend on the type of organism carrying out the process. Yeasts are
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