31. Glycolysis(2 pt) a. does not require O2 to generate energy. b. requires O2 t
ID: 273525 • Letter: 3
Question
31. Glycolysis(2 pt) a. does not require O2 to generate energy. b. requires O2 to generate energy. c. is inhibited by O2 d. rate is increased in the presence of Op. e. None of the above 32. The fate of pyruvate produced during glycolysis depends primarily on the availability of) a. NAD to keep the pathway going. b. molecular oxygen. c. ADP for conversion to ATHP d. coenzyme A for further metabolism of pyruvate. e. phosphoric acid for the synthesis of ATP. 33. In acrobic metabolism, what is the fate of pyruvate produced by glycolysis? (2pt) a. Pyruvate loses carbon dioxide, and the remaining two carbon atoms become b. Pyruvate loses carbon dioxide, producing acetaldehyde, which, in turn, is reduced to ethanol. e. Pyruvate is reduced to lactate. d. a and b only e. All of the above linked to coenzyme A. 34. In humans, what can pyruvate be converted too? (2 p) a. acetyl-CoA only. b. lactate only c. ethanol only d. acetyl-CoA and lactate. e. None of the above 35. Which of the following is not an end product of glucose metabolism via either acrobic or anaerobie means? (2 a. ethanol b. carbon dioxide c. lactate d. fructose e. all of these are end products of glucose metabolismExplanation / Answer
31) correct answer: "a"
glycolysis is an oxidative process in which one mole of glucose molecule is partially oxidized into the two moles of pyruvate in a series of enzyme-catalyzed reactions. glycolysis occurs in the cytosol of all cells. it is a unique pathway that occurs in both aerobic as well as anaerobic conditions and does not involve molecular oxygen.
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32) correct answer "c"
in the last step of glycolysis, two ADPs will convet into two ATPs.
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33) correct answer "d"
Pyruvic acid(the last result of Glycolysis) under aerobic conditions (in Eukaryotes) is oxidized to CO2, ATP (Adenosine triphosphate), and NADH2 and FADH2 (which are additionally oxidized to discharge vitality).
As a matter of first importance, Pyruvic acid experiences oxidative decarboxylation to frame Acetyl Co. A (connecting pathway to Krebs' Cycle), where in all the Carbon is successively expelled, and framed NADH2 and FADH2 with little vitality in type of ATP and GTP (which later changes to ATP).
From that point the NADH2 and FADH2 enters Electron Transport Chain(ETS) to experience oxidation by a few variables to frame ATP (3ATP/NADH2 and 2ATP/FADH2).
In the long run ETS ends at definite advance in which O2 assumes a part, and we get around (36/38 ATP).
Glycolysis happens in cytoplasm, Krebs' cycle in Matrix of Mitochondria and ETS on the inner membrane of Mitochondria.
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34) correct answer "d"
Pyruvic acid can be produced using glucose through glycolysis, changed over back to sugars, (for example, glucose) by means of gluconeogenesis, or to unsaturated fats through a response with acetyl-CoA. It can likewise be utilized to build the amino acids alanine and can be changed over into ethanol or lactic acid by means of fermentation.
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35) correct answer "e"
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