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- Handwritten Identify the molecule names, enzyme name, enzyme classification and change in reaction(for glycolysis pathway)vat *Pyruvate carboxylase, which catalyzes conversion of pyruvate to medbo which cat oxaloacetate, is a regulatory enzyme activated by acetyl-SCOA.A ms Ido Explain why this control is advantageous to organisms. el pidotes to 316q beisbianoo olovo bios bixdio eda ei ydw ni 169qqs son esob nopyxo 16Iuselom nouods nove mellodstem Slovo od to noijose s zonado nostoals ont To 9300098 opo bias oito any contenos ain't ty dopo of basi sio S OU *While acetyl-SCOA activates pyruvate carboxylase, it inhibits pyruvate kinase. Explain how this is consistent with the idea of 9 complementary control.pе pпiwollot or to doss to slovo bios sitio :eyswdisq otlodsjem E2- noitididat xosdb99tLA student, halfan hour afier the dinner, containing about I50 g ofearbohydrates, 20 g of fat, and 40g of peotcin, is siting in a chair and reading d) cnumerate the rogulatory enzmes of fatty acid synthesis from elucose that have their activity and amount increased underthe influcnec ofthe mentioned hormone
- The role of L-carnitine in fatty acid metabolism is O Facilitate the transport of fatty acid from the cytosol to mitochondria O Activator of acetyl CoA carboxylase O None of the above O Serve as a cofactor for enzyme fatty acid synthaseis considered part of aeroof metall *Give an example, taken from digestion, glycolysis, gluconeogenesis or the citric acid cycle of each of the following regulatory mechanisms o for metabolic pathways: feedback inhibition complementary control dividos dje16390solexo to etnuoms pritsuse to 29 dj n geb Isblomple s ewora' euealt Jused pig mort заsdjn -lygiosue nadw.woled awode as Ao02-Iyjobs to no nave asmosed bas dpi od of ejtine evius en a wod nislqxe anoissv19edo 9e9dd to aiasd odd allosterism dw.eesdJnye staadio to yjivijos 9d Sefovo bios bijis 9d 90 10 9361 9dJ 101пoo 9161315 1 00 odd n bobbs ei Ao no .Isbiomph esislupex A00 to noijslupei 101 Isapia adsinqoqqs n eesdaye 9J61Jio 30 noiislupe1 sd 290 to m Soveeld Jised piq ni noijsliqas W hormonal activity Ad-Pantaops zymogen-active enzyme conversion phosphorylation or dephosphorylation Vis dinGTP or ATP is produced during the conversion of isocitrate into ketoglutarate succinyl CoA into succinate fumarate into malate malate into oxaloacetate
- Radiolabeling with 14C-Glutamate Describe the labeling pattern that would result from the introduction into the TCA cycle of glutamate labeled at Cy with 14C.Comparing Glycolysis Entry Points for Sucrose Sucrose can enter glycolysis by either of two routes: Sucrose phosphorylase: Sucrose + Pi fructose + glucose-1-phosphate Invertase: Sucrose + H20 fructose + glucose Would either of these reactions offer Jin advantage over the other In the preparation of hexoses fur entry into glycolysis?Consider the synthesis and degradation of tyrosine as shown in Figures 25.37, 25.38, and 25.48 to determine where the carbon atoms in PEP and erythrose-4-P would end up in acetoacetate and fumarate.
- Distinguishing the Mechanisms of Class I and Class I Aldolases Fructose bisphosphate aldolase in animal muscle is a class 1 aldolase, which forms a Schiff base intermediate between substrate (for example. fructose-1, 6-bisphosphate or dihydroxyacetone phosphate) and a lysine at the active site (see Figure I8.12). The chemical evidence for this intermediate conies from studies with aldolase and the reducing agent sodium borohydride, NaBH4. Incubation of the enzyme with dihydroxyacetone phosphate and NaBH4 inactivates the enzyme. Interestingly, no inactivation is observed if NabH4 is added to the enzyme in the absence of substrate. Write a mechanism that explains these observations and provides evidence for the formation of a Schiff base intermediate in the aldolase reaction.Look at this diagram of fally acid metabolism and malch the numbers wilh the enzymes, inlermediatos and colactors listed Not all Ghe labels are needed and some may be uzed more than once Fatty Acid 1 2 Step 1 R-CH-CH,-CH- S-COA (Acyl CoA) 3 Acyl CoA dehydrogenase (Enoyl CoA) R-CH C=C-C-S-COA Step 2 Enoyl Co A hydratase OH H (L-Hydroxyacyl CoA) R-CH C-C-C-8-COA Step 3 L-Hydroxyacyl COA dehydrogenase R-CH C-CH-C-s-COA Ketoacyl CoA Step 4 B-ketothiolase C-S-COA R-CH-C-S-CoA (Acyl CoA-2C) A NADP E NAD C. ATP D. NADPH t. ADP t. NADH FADH2 K. coonzymeA LAMtransicnaat M. FAD >>>> > > > > Back to Step 1Fatty acid degradation stimulates the citric acid cyclethrough the activation of pyruvate carboxylase by acetylCoA. Why would the activation of pyruvate carboxylaseincrease energy generation from fatty acids?