6. Frutose - 2,6-Biphasphate is made by an enzyme which itself IS regulated by phaspnorylation/dephasphorilation Spoude a Short summany of this 7. which step is the maror regulator of Gly coly Sis.
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- Put the following pathways in the order they occur during aerobic respiration. a. electron transfer phosphorylation b. acetylCoA formation c. citric acid cycle d. glycolysisImagine that you are working with isolated mitochondria and you manage to double the ratio of protons outside to protons inside. In order to maintain the overall Gat its original value (whatever it is), how would you have to change the mitochondria membrane potential?When glucose reacts with ATP to form glucose-6-phosphate: a. the synthesis of glucose-6-phosphate is exergonic. b. ADP is at a higher energy level than ATP. c. glucose-6-phosphate is at a higher energy level than glucose. d. because ATP donates a phosphate to glucose, this is not a coupled reaction. e. the reaction is spontaneous.
- The aerobic part of aerobic cellular respiration occurs during (a) glycolysis (b) the conversion of pyruvate to acetyl CoA (c) the citric acid cycle (d) electron transport (e) all the preceding are aerobic processesWhen NAD becomes NADH, the coenzyme has been ________. reduced oxidized metabolized hydrolyzedEnergu production pathway is tartgeted bu drugs in melignant cells to control x cancer type. Use your sepculation and tell targeting and destroyin which one energy producing agent of oxydative phosphorylation will be most effective in blocking of the energy production and why?
- 6. The lens of the eye si the light refracting medium of the eye, and ti has no mitochondria. Glucose is used sa an energy source ni the lens. Which metabolic pathway of glucose supplies energy to the crystalline eye lens? To answer the question: a) write a diagram of the metabolic pathway that provides the eye's lens with ATP, specify enzymes and coenzymes; b) mark the reactions associated with the ATP consumption and synthesis, calculate the ATP yield during the process; )c specify the mechanisms ofATP synthesis ni the process; d)name the tissues and cells in which the ATP synthesis is the same as in hte lens; e) writethe dehydrogenation reaction and the reactionoffinal product formation occurring in the process;A 75 kg person doing light work requires about 3000 kcal of food energy perday, 40% of which is actually used by the body’s cells. (The other 60% is lostas heat and in waste products.) Before being used by the cells, effectively allof this energy is stored in ATP, which is then cleaved into ADP and PO3−2 , with the release of 12.5 kcal per mole of ATP.(a) How many moles of ATP are turned over per day in this fashion? Whatmass of ATP does this correspond to? (The molecular weight of ATP is507 g/mol.)(b) The body actually contains approximately 5 g ATP. Estimate the averagerecycle time for an ATP molecule. You see that it is much more efficientto reuse ADP rather than to synthesize it de novo (from scratch).If glycolysis has an overall –DG (i.e., it’s exergonic), why does it require an energy investment of two ATP to happen?
- DRAW IT The graph here showsthe pH difference across theinner mitochondrial membraneover time in an actively respiringcell. At the time indicated by thevertical arrow, a metabolic poisonis added that specifically andcompletely inhibits all function ofmitochondrial ATP synthase. Drawwhat you would expect to see forthe rest of the graphed line, andexplain your graph.You are growing human muscles cells in the lab and you are trying to test how wellthe cells survive with decreasing concentrations of oxygen. As part of yourexperiment, you are measuring the rate of glucose use, the rate of mitochondrial ATPproduction and the pH of the solution surrounding the cells. As the concentration ofoxygen becomes lower änd lower, what changes might you expect to observe inthese cells?A. The rate of glucose use would increase, the rate of mitochondrial ATP productionwould decrease, and the pH of the solution would decrease (become more acidic).B. The rate of glucose use would decrease, the rate of mitochondrial ATP productionwould decrease, and the pH of the solution would increase (become more basic).C. The rate of glucose use would increase, the rate of mitochondrial ATP productionwould increase, and the pH of the solution would decrease (become more acidic)D. The rate if glucose use would decrease, the rate of mitochondrial ATP productionwould decrease, and…dtermoine numberof ATPS GENERATED FROM COMPLETE oxidation of fructose-6-phosphate isocitrate stearidonic acid [18 carbons triangle 6,9,12,15] indicate where everything comes from ex ATPS FROM GLYCOLYSIS , NADH FROM TCA ETC LIST ALL