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- . Glucagon secretion causes inhibition of intracellular acetyl-CoA car- boxylase activity by several mechanisms. Name all you can think of.True or False e. Triacylglycerols and glycerophospholipids both contain fatty acids and saponifiable. True False f. Pyruvate serves as the precursor of the glycerol backbone during TAG biosynthesis. True FalseG. ENZYME CLASSIFICATION. Identify the main class of enzymes used to catalyzed the following reactions: 1. Lactate dehydrogenase: NADH+H NAD HC-OH CH3 CH Pynnte Lactate 2. Methylmalonyl-CoA mutase: CH CH SCOA CH,CH, SCOA coenzyme B12 COO COO methylmalonyl-CoA succinyl-CoA 3. Enolase: 0. H–Ċ–0–P–0- C-0–P-0- + H,0 HO–CH, CH 6 Phosphoenolpyruvate 2-Phosphoglycerate 4. Chymotrypsin: -0–CH,CH3 + H2O - RCOOH + HOCH,CH3 5. Pyruvate carboxylase: coo • co, • ATP + H,0 H-C-H . ADP + P, + 2H čoo CH, Pyruvate Oxaleacetate
- PATHWAYS (12 pts). Complete the pathway below by writing the intermediate (I) name, pathway name (P) and enzyme (E) name. glucose 4. P alucose-1-P 3.1 ribose-5-P 1.P 2.P 5. E giytogen pyruvate alanine 6. I- HMG-CoA 7. I bile salts, steroid hormones 8.I ETC 9. Р 10. I and 11. I ATP 12. I (via substrate level phosphorylation) carbon dioxideCHOOSE THE CORRECT LETTER. Which of the following reactions require ATP in glycolysis?A. glucose-6-phosphate to fructose-6-phosphateB. fructose-1,6-bisphosphate to glyceraldehyde-3-phosphateC. 3-phosphoglycerate to 2-phosphoglycerateD. fructose-6-phosphate to fructose-1,6-bisphosphateHO. Hexanoic acid is a 6-carbon saturated fatty acid found in goat's milk. Hexanoic acid also contributes to the "barnyard" smell of goats. Fun fact: Hexanoic acid is also known as caproic acid. The name "caproic" is derived from the Latin word "caper", which means goat. What is the balanced equation for complete beta oxidation of hexanoyl-COA to acetyl-CoA shown below (ignore H20 and H+): O Hexanoyl-COA + 3COA + 3FAD + 3NAD+ -------> 3 acetyl-COA + 3 FADH2 +3 NADH O Hexanoyl-CoA + 2COA + 2FAD + 2NAD+ --> 3 acetyl-CoA + 2 FADH2 + 2 NADH O Hexanoyl-CoA + 1COA + 1FAD + 1NAD+ --> 2 acetyl-CoA + 1 FADH2 +1 NADH O Hexanoyl-COA + 6COA + 6FAD + 6NAD+ --------> 6 acetyl-CoA.+ 6 FADH2 + 6 NADH None of the above
- Which of the followinga. phosphopentose isomeraseb. acetyl CoA carboxylasec. isocitrate dehydrogenased. fructose 1,6,biphosphatase-1e. glucose 6-phosphate dehydrogenaseis appropriate for this analogyglycolysis:phosphofructokinase-1:______:pentose phosphate pathwayA. What would happen in the Krebs cycle with the loss of activity of phosphoglycerate kinase? What would happen in glycolysis? 10. What happens to glycolysis with the addition of high amounts of citrate? What happens to ETS? 11. What happens in the Krebs cycle with a block in fumerase? 12.If an amino acid enters the Krebs cycle at the acetyl CoA entry point, how much more ATP is being made than if it enters at a keto-glutarate?Role of the triacyl glycerol cycle. Summarize the cycle referring to the figure. What role does the cycle play in metabolism? Please be detailed in your answer
- Although both acetyl-CoA and succinyl-CoA are high-energy thioesters, their chemical energy is used in distinct ways. Elaborate.Part A Match the following. Drag the appropriate labels to their respective targets. Note: not all labels will be used. Reset Help compounds produced when there is little or no carbohydrate metabolism and a subsequent increase in fat metabolism a carrier of electrons to the site of ATP ketone bodies transaminated amino acid production, from oxidation reactions involving carbon-carbon double bonds FAD lipoproteins formed from triacylglycerols and protein chylomicrons an amino acid that is not synthesized in the body B oxidation a major step in fatty acid degradation essential amino acidGlucagon secretion inhibits intracellular acetyl-CoA carboxylase activity through a number of different methods. Make a list of everything that comes to mind.