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View History Bookmarks People Window Help ps://canvas.ewu.edu/courses/ 1 1 62436/files/folder/Spring%20 20 1 7%20Exams?previews 43 826 1 31 017.doc Do Page of 6 A) all the processes that involve breaking down molecules into smaller fragment:s B) all the processes that involve the synthesis of molecules. C) all the processes involved in both a and b above. D) all the processes involved in both a and b plus additional processes. E) none of the above 2. Of the compounds classified as carbohydrates, lipids, and proteins, which can be used by the body as fuels? A) only carbohydrates and lipids B) only lipids and proteins C) only carbohydrates and proteins D) all of them E) none of them 3. The pathway followed by glucose when energy is needed is A) gluconeogenesis. B) glycogenesis. C) glycolysis. D) lipogenesis E) the pentose phosphate pathway 4. Steps 1-5 of glycolysis are referred to as the "energy investment" process because these steps A) involve several endergonic isomerizations B) generate waste products which cost ATP for disposal. C) produce NADH which is less energy-rich than ATP D) consume ATP instead of producing it. E) none of the above FS F2Explanation / Answer
1. Option (D)
Metabolism is all the processes that involve breaking down molecules into smaller fragments and also that involve the synthesis of molecules. So, Option (D) is correct.
2. Option (D)
Carbohydrates are your body’s main fuel source. Our body uses carbohydrates first, then fats and finally breaks down muscles and uses protein. So, these are the three essential building blocks of your body’s fuel system.
3. Option (C)
Glycolysis pathway is followed by glucose when it needs energy. First oxidation of Pyruvic acid which thereafter followed by Kreb's cycle or citric acid cycle.and finally the electron transport chain... One molecule of glucose yields 38 ATP molecules.
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