If cells synthesizing glucose from pyruvate are exposed to co2 labbeled 14C use the structure of gluconeogenesis to write where the carbon ultimately ends up.
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If cells synthesizing glucose from pyruvate are exposed to co2 labbeled 14C use the structure of gluconeogenesis to write where the carbon ultimately ends up.
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- Glucose is converted to pyruvate in glycolysis, yielding a netsynthesis of 2 ATP. In certain cells pyruvate can be reconverted to glucose during gluconeogenesis. How many ATPsare required to convert pyruvate back to glucose?Thioesters play important roles in glycolysis and tca cycle. List which reactions involve thioesters.in the synthesis of glycogen, the glycogen synthase uses UDP-glucose rather than glucose. Explain in detail way.
- The complete oxidation of which fatty acid to CO2 will yield 11 FADH2 and 23 NADH + H+ ? (Give the common name in the form NAME ACID.)Explain why the hydrolysis of the following compounds releases energy. A. phosphoenol pyruvate B. 1,3-diphosphoglycerate C. succinyl CoACertain tissues, such as the heart muscle, can use lactate as an energy substrate. How much ATP is formed during the oxidation of one lactate molecule to CO2 and H2O? write the reactions of the complete oxidation of lactate.
- If 14CO2 (radioactive carbon) were incorporated into the TCA cycle via the Pyruvate Carboxylase reaction which of the following molecules would contain radioactive carbon? a. Oxaloacetate b. Citric Acid c. Isocitrate d. Alpha-ketoglutarate e. Succinyl-CoA f .Succinate g. Fumarate h. MalateDraw the structures of pyruvate, Acetyl-CoA, alanine, oxaloacetate, and glyceraldehyde-3-phosphate into a scheme that shows their meatbolic interrelationships. Please do a drawing with the actual structures to show this versus a written answer.Which citric acid cycle intermediate can move from the mitochondria into the cytoplasm to become the activator of fatty acid synthesis? Select one: a. Succinyl-CoA b. Fumarate c. Citrate d. Malate
- A glucose molecule with its 3rd carbon radiolabelled underwent glycolysis. Which carbon atom in the resultant pyruvate will show radioactivity?If glucose labeled with 14C in C-3 were metabolized by glycolysis, pyruvate would be labeled in: a. None of the carbons b. its carboxyl carbon (C-1) c. its methyl carbon (C-3) d. its carbonyl carbon (C-2) e. all three carbonsCan the carbons in ketones be metabolized and wind up in a glucose monosaccharide? If yes, using merely the information presented in class, outline a possible metabolic route for these carbons. If no, explain why not.