Why is oxaloacetate an intermediate in gluconeogenesis?
Q: Why does it make good metabolic sense for phosphoenolpyruvate carbox- ykinase, rather than pyruvate…
A: Phosphoenolpyruvate carboxylase is an enzyme in the family of carboxy-lyases found in plants and…
Q: What is the metabolic role of aspartate transcarbamoylase?
A: Aspartate transcarbamoylase catalyzes the first biochemical reaction in pyrimidine biosynthesis. It…
Q: Why is the reaction catalyzed by citrate synthase considered a condensation reaction?
A: The citric acid cycle is the oxidation metabolic pathway that leads to the production of electrons…
Q: What is the simplest explanation in the notion that phosphofructokinase is a regulated enzyme?
A: Phosphofructokinase regulated by ATP, an ADp derivative called AMP, and citrate, as well as some…
Q: Why is acetyl CoA an especially appropriate activator for pyruvate carboxylase?
A: The citric acid cycle (TCA) is a catabolic process. It is a series of chemical reactions in which…
Q: Why are thioesters considered high-energycompounds?
A: Energy-rich compounds in cells comprise five kinds of high-energy bonds: phosphoanhydride, acyl…
Q: What is the difference between ketogenic and glucogenic amino acids?
A: Proteins are made of monomers, the amino acids, linked by peptide bonds. The proteins are required…
Q: is lycopene an intermediate in the biosynthesis of cholesterol?
A: Lycopene, a plant nutrient have antioxidant properties is an intermediate in biosynthesis of many…
Q: What is the structure of the intermediate formed during the conversion of dihydroxyacetone phosphate…
A: Introduction: The metabolic pathway by which glucose converts into ATP and pyruvate is known as…
Q: Why is the glyoxylate cycle necessary for growth on acetate butnot on succinate?
A: Many bacteria and plants are able to subsist on acetate or other compounds that yield acetyl CoA.…
Q: what is the metabolic reaction of propinoyl CoA carboxylase?
A: Propinoyl CoA carboxylase is an enzyme responsible for carboxylation reaction. Propinoyl CoA is…
Q: What is the enzyme classification of the catalyst used in the conversion of dihydroxyacetone…
A: Triose-phosphate isomerase Enzyme that catalyzes the reversible interconversion dihydroxyacetone…
Q: How is the glycerol 3-phosphate required for phosphatidate synthesis generated?
A: Phosphatidate is a necessary biomolecule because phospholipids, which are essential components of…
Q: Under anaerobic circumstances, why is pyruvate converted to lactate?
A: Anaerobic Glycolysis is the process of glucose oxidation that occurs when oxygen levels are low,…
Q: N-Acetylglutamate is required as a cofactor in the synthesis of carbamoyl phosphate. How is…
A: Cofactors are non-protein part of the enzymes that helps in the catalytic activity during a…
Q: What properties of glucokinase allow it to phosphorylate glucose in the liver when the blood glucose…
A: Glucokinase is an enzyme that facilitates phosphorylation of glucose to glucose-6-phosphate.…
Q: What is the key enzyme of the pentose phosphate pathway also serving as the first enzyme of the…
A: The pentose phosphate pathway (PPP) is an alternate or parallel metabolic pathway to glycolysis.…
Q: Why is the malate–aspartate shuttle system important for gluconeogenesis?
A: Malate aspartate shuttle or malate shuttle performs in the outerside membrane of mitochondria.
Q: How does pyruvate carboxylase deficiency result in lactic aciduria, an illness in which lactate…
A: Glucose metabolism is regulated by hormones and feedback system.
Q: Why is it advantageous that breakdown of glycogen gives rise to glucose-6-phosphate rather than to…
A: Introduction The phosphorolytic cleavage of glycogen results in the formation of glucose-6-phosphate…
Q: What is the normal fate of citrate formed by the condensation of acetyl CoA with oxaloacetate?
A: Introduction: The oxaloacetate combines with acetyl CoA to form citrate which is the starting point…
Q: How would riboflavin deficiency affect the functioning of the tricarboxylic acid cycle?
A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…
Q: what is the role of amino acids in purine metabolism?
A: Purine metabolism is described as a process in which different metabolic pathways are followed so as…
Q: What is the clinical and diagnostic significance of alpha-amylase?
A: Alpha-amylase is an enzyme that works on the hydrolysis of starch and other polysaccharides.…
Q: Why is citrate an appropriate inhibitor of phosphofructokinase?
A: Citrate allosterically inhibits phosphofructokinase by enhancing the inhibitory effect of ATP
Q: Why is gluconeogenesis labeled as enzymatic by-pass reactions?
A: Glucose is a central carbohydrate in body. It is the instant energy generating molecule. Whenever…
Q: What is the role of glutathione in protection against damage by reactive peroxides? Why is the…
A: Ans: Glutathione: It is the antioxidant molecule that consists of glutamine, glycine as well as…
Q: This is a conjectural question: If the reactive part of coenzyme A is the thioester, why is the…
A: Coenzyme A Is an important coenzyme that plays an important role in many metabolic pathways.the…
Q: How is tetrahydrofolate important to purine synthesis?
A: Purines are the nitrogenous bases that form two different kinds of nucleotide bases in RNA and DNA.…
Q: What is a major difference between transketolase and transaldolase?
A: Transketolase and transaldolase are the enzymes which is used in the HMP shunt pathway. where the…
Q: Why is phenylketonuria resulting from dihydropteridine reductase deficiency a more serious disorder…
A: Phenylketonuria (PKU) is a rare genetic condition that causes an amino acid called phenylalanine to…
Q: N -Acetylglutamate is required as a cofactor in the synthesis of carbamoyl phosphate. How is…
A: N-acetyl (NAG) glutamate is considered as a cofactor, in the synthesis of the carbamoyl phosphate,…
Q: What are the products of the following transamination reaction? a-ketoglutarate + alanine O…
A: Amino acids are the building blocks of proteins which are composed of amino group (NH3+), carboxyl…
Q: What is a potential fate of propionyl CoA?
A: Proppionyl CoA is a coenzyme a derivative of propionic acid. It is composed of a 24 total carbon…
Q: Why does it make good metabolic sense for phosphoenolpyruvate carboxykinase, rather than pyruvate…
A: Guconeogenesis is the process whereby glucose is formed from non-carbohydrate metabolic substrate…
Q: What is the mechanism of action of acetylcysteine
A: In persons with lung disorders such as asthma, emphysema, bronchitis, and cystic fibrosis,…
Q: Where does aspartate enter the urea cycle and what compound does it eventually leave as? What…
A: Urea cycle or the ornithine cycle is the metabolic process in which highly toxic ammonia is…
Q: How is it possible for fluoroacetate to enter the citric acid cycle?
A: Carbohydrates, in particular glucose, is preferred biomolecule for ATP generation. Glucose is…
Q: What would be the fate of oxaloacetate if there were sufficient fluoroacetate present?
A: The Kreb cycle begins with the condensation of an oxaloacetate, and the acetyl group of acetyl-CoA.…
Q: Why is triose phosphate isomerase considered to be catalytically perfect?
A: Diffusion-limited reactions are reactions where the rate of the reaction is solely dependent upon…
Q: Is tetrahydrofolate involved in the synthesis of glycine?
A: Introduction: Tetrahydrofolate is a water-soluble vitamin that acts as a coenzyme in metabolic…
Q: Why does it make good metabolic sense for phosphoenolpyruvate carboxykinase, rather than pyruvate…
A: Guconeogenesis is the process whereby glucose is formed from non-carbohydrate metabolic substrate…
Q: What type of bond is hydrolyzed by alpha Amylase?
A: Amylases are of three types namley : 1.Alfla amylase 2.Beta amylase 3.Gamma amylase Amylases are the…
Q: What reactions convert glyceraldehyde-3-phosphate to pyruvate?
A: Introduction: Glyceraldehyde 3-phosphate is converted to pyruvate In a series of steps that produce…
Q: What is the metabolic importance of malonyl-CoA?
A: Introduction: Malonyl-CoA is a malonic acid coenzyme A derivative. In the production of fatty acids…
Q: What is gluconeogenesis? Why is it important?
A: Gluconeogenesis is the process of synthesis of glucose from non-carbohydrate sources like proteins…
Why is oxaloacetate an intermediate in gluconeogenesis?
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