Help please (BL4) In aerobic respiration, what process occurs in the absence of
ID: 202914 • Letter: H
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Help please
(BL4) In aerobic respiration, what process occurs in the absence of oxygen? a. Glycolysis b. Kreb's Cycle c. Electron Transport Chain d. Oxidative phosphorylation e. Fermentation 24. (BL2) How many redox reactions occur in one "spin" of the Kreb's cycle? b. Two c. Three d. Four e. Five 25. (BL4) The primary purpose of fermentation is best summarized as which of the following? a. b. c. d. e. To make beer, wine, or sauerkraut To build up lactic acid in our muscles from use without oxygen To regenerate NAD+ To torment students who don't like chemistry To produce unusual by-products to be used as industrial solvents 26. (BL1) Chemical reactions that transfer electrons between reactants are known as what kind of reactions? a. Oxygenation b. Reductionism c. Oxycleanation d. Rednet e. Redox 27. (BL2) Where does glycolysis occur in a eukaryotic cell? a. In the nucleus b. In the cytoplasm c. In the golgi d. In the mitochondria e. In the chloroplasts 28. (8L2) How many molecules of ATP are used in glycolysis per molecule of glucose? a. One b. Two c. Three d. Four e. Five 29. (BL2) All of the carbon that was in the molecule of glucose at the start of glycolysis is lost from the cell. After which process is this carbon completely gone? a. Glycolysis b. Pyruvate oxidation c. Kreb's Cycle d. Chemiosmosis e. Oxidative phosphorylationExplanation / Answer
23. A) Glycolysis.
None of its steps requires oxygen, it is an anaerobic process and takes place in cytoplas of the cell.
24. D) Four, NADH and FADH2 produced by redox reactions. Per turn of kreb cycle liberates 3 NADH and 1 FADH2.
25. A) To make beer, wine and sauerkraut, because in the absence of oxygen yeast ferment the products thus by liberating ethanol carbon dioxide and energy.
26. E) Redox reaction also known as oxidation-reduction reaction involes the transferof electrons between the reactants.
27. B) In the cytoplasm, unlike mitochondria glycolysis takes place under anaerobic condition as no oxygen involves in carrying out the process.
28. B) Two, one ATP used when glucose is being converted into glucose-6- phosphate and another ATP used during formation of fruction 1,6- bisphosphate from fructose 6-phosphate..
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