Question

6. In question 5, what is the most important reaction involved in formation of lactate? A) dihydroxyacetone phosphate glycerol 3-phosphate D) pyruvate → lactate B) oxaloacetate → malate E) isocitrate → a-ketoglutarate C) glucose 6-phosphate → fructose 6-phosphate 7. During the process in question 5 (the rapid rise in lactate concentration), the NADH must be reoxidized to NAD+. Which of the following enzymes will be most affected if NADH is not reoxidized? A) Pyruvate kinase. C) Phosphofructokinase-1. E) aldolase. B) hexokinase. D) Glyceraldehyde 3-phosphate dehydrogenase.

Answer 1

"In question 5 what is the most important Eccetion invalued in formation of lactate.? AD? A) clehydroxyacetone phosphate -->glycerol 3-phosphate. B) oxabacetale -> malale C) glucose 6-phosphate + fructose 6-phosphate D) puuvale -> factate E) i socitate -> a-ketoglutascale Ans 7 DIP ) pyruvate -> lactale. og Pustivate too Final Step of anaerobic glycolysis is conversion of Pyruvate - lactate by the enzyme ilactate dehydrogenase is most important Reactor Because the last reaction provides a source of NADZ essential for anaerobic glycolysis to proceed production of factate is the only means for glucose utilization and ATP production in erythrocytes. Glucose Lactate Lactate A AGENELSE dehydrogenate Glueese > Glucose 7 --> . Glyceraldehyde 3-phosphale, Glyceraldehyde-3 - napt -----NAD S phosphale dehydrogenase NADH----->NADY 13 diphosphoGlycerole phosphocytrale ADP kinase V ATP 3-phosphoglycerale MVU ---->NAD I pyruvate App BATP 2-phosphoolywrale Enolase v phosphroenplptuale pysuvale kinare

So important 3dep. NAON NADH > Lactate prouvale / Lactate dehydrogenasé Qar. During the process an ouestions, - the NADU must be reoxidized to ·NADt. - which of the following enzymes will be most affected to il MADH is not eloxidized a AC A) pyurale kinase B) hexokinase c) phosphofructokinase. I D) Glycecaldehyde-3-phosphate.dehydrogenase. E) Aldolase Aris) D Glyceraldehyde-3-phosphate dehydrogenase Glyceroldehyde -3-phosphate dehydrogenase. till enzymeWill most affect because of the following importace of Napt in, the raction of oxidation of glyceraldehyde 3- prigsphate in which an aldehyde in concerted into o cowbory do acid and Napt es Simultaneously Produced endergonically to NAD Glyceraldehyde 3-phosphale Glyceraldehyde zi a Napt phosphole' de hy disgornare 1,3 Bisphosphoglycorate -NADH