If acetyl-CoA is labeled with 14C at its methyl group, how many rounds of the cycle are required before 14CO2 is released?

Q: Explain how the g-glutamyl cycle acts to transport aminoacids across a membrane. How does the…

A: Gamma-Glutamyl cycle is mainly a glutathione salvage pathway. It is an essential pathway for the…

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: 3-Hydroxy-3-methylglutaryl CoA is on the pathway for cholesterol biosynthesis. It is also a…

A: Cholesterol is a lipid molecule containing four hydrocarbon rings linked with each other, along with…

Q: Outline the steps involved in the production of malonylCoA from acetyl-CoA.

A: Fatty acids are the long hydrocarbon chain compound attached to the carboxylic group making the…

Q: The archaebacterium Haloarcula marismortui can use acetate (which is converted to acetyl-CoA) as a…

A: The citric acid cycle is central to metabolism and hub for providing intermediates for biosynthesis…

Q: Do you think that the reverse of the reaction given, (Malonyl-CoA → Acetyl-CoA + HCO3-) must be…

A: Detailed explanation: Yes, the reverse reaction of Malonyl-CoA converting to Acetyl-CoA and HCO3-…

Q: Some bacteria use the citric acid cycle intermediate, a-ketoglutarate, plus acetyl-CoA, as the…

A: The citric acid cycle is also known as TCA cycle is a series of chemical reactions used by all…

Q: Why is AMP and not ADP the positive regulator of phosphofructokinase?

A: Metabolic pathways are defined as the set of chemical reactions occurring in the body. Metabolic…

Q: The citric acid cycle itself, which is composed of enzymatically catalyzed steps, can be thought of…

A: Citric acid cycle is also known as Krebs cycle or TCA cycle. This cycle occurs in the matrix of…

Q: How many reduced molecules (NADH, FADH2, NADPH) will be generated by converting lineoleic acid…

A: The fats are stored in eukaryotes as triglycerides that are broken down using the enzyme Lipase to…

Q: What form of activated glucose is used in the biosynthesis ofglycogen by bacteria?

A: Bacteria are member of a large group of unicellular microorganisms. It has cell walls but lack…

Q: The urea cycle can be summarized through the following reaction: O COO- || H₂N-C-OPO3 +…

A:

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: What is the effect of cholesterol feeding on the amount of HMG-CoA reductase mRNA?

A: Cholesterol is a waxy, fat-like substance found in all the cells of our body. Our body uses…

Q: Consider the following Statements: (1) Citric acid cycle intermediates are often the products from…

A: Asked : True statements are to be chosen among the given statements.

Q: Why is the formation of fructose1,6bisphosphate a step in which control is likely to be exercised in…

A: The cellular processes occur via stepwise chemical reactions in which these reactions are…

Q: Why is oxaloacetate an intermediate in gluconeogenesis?

A: Glucose is the primary source of energy in the body. Glucose is broken down into pyruvate by…

Q: How many GTP, NADH, and FADH2 are produced from each acetyl coa undergoing krebs cycle?

A: The citric acid cycle also known as the TCA cycle or the Krebs cycle is a series of chemical…

Q: what is the inhibitor of Acetyl-Co

A: Fatty acid metabolism includes Fatty acid biosynthesis (an anabolic process) and β- oxidation of…

Q: Why are there reversible steps in the glycolytic pathway? Explain why they all be could not be…

A: Glycolysis is a process in which one molecule of glucose is converted to two molecules of…

Q: What is the mechanism of an enzyme reaction involving a coenzyme for Redox Rxns?

A: Enzymes are a class of proteins that performs various activities in the living body. They are also…

Q: difference between an acetyl CoA molecule and an acyl CoA molecule?

A: Acetyl CoA and Acyl CoA are the type of Coenzyme A which acts as a cofactor. Coenzyme A is…

Q: Why does it make metabolic sense for UTP to inhibit carbamoyl phosphate synthetase II, whereas ATP…

A: Feedback inhibition is a cellular control mechanism in which the activity of the enzyme is inhibited…

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: If G6P is labeled at its C2 position, where will the label appear in the products of the pentose…

A: The alternative pathway of glucose oxidation is the pentose phosphate pathway that includes two…

Q: Why is the formation of fructose-1,6- bisphosphate a step in which control is likely to be exercised…

A: The regulation of glycolysis occurs at three points which are catalyzed by enzymes such as…

Q: Does PFK-2 (Phosphofructokinase-2) have coenzymes and Allosteric reguation?

A: Enzymes are proteins that play a major role as biochemical catalysts in speeding up a biochemical…

Q: Why is acetyl-CoA considered the central molecule of metabolism?

A: Metabolism is the term used to describe set of chemical reactions that are involved in the living…

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: Name four amino acids that can be converted directly (in one step) into pyruvate or a citric acid…

A: Introduction Protein is the most abundant macromolecule in our body. Proteins perform various…

Q: All the following amino acids produce an intermediate of the TCA cycle except Isoleucine Leucine…

A: TCA cycle or tricarboxylic acid cycle also known as Krebs cycle operates in the mitochondria

Q: Why is citrate an appropriate inhibitor of phosphofructokinase?

A: Citrate allosterically inhibits  phosphofructokinase by enhancing the inhibitory effect of ATP

Q: Why is the TCA cycle is important for both anabolic and catabolic reactions?

A: After each turn of the TCA cycle, oxaloacetate is regenerated and can combine with another…

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: Which reactions of the citric acid cycle transfer energy as FADH2?

A: FAD acts as coenzyme which accepts the electrons and protons get reduced to FADH2.

Q: What does Succinyl coa By-products in krebs cycle?

A: Kreb cycle is a process in which a series of chemical reactions takes place in order to release the…

Q: Human beings contain two different carbamoyl phosphate synthetase enzymes. One uses glutamine as a…

A: The ATP-dependent synthesis of carbamoyl phosphate from glutamine or ammonia is catalyzed by…

Q: Please describe four different modes of the regulation of the pentose phosphate pathway.

A: Introduction:- The Question is all about the pathway of pentose phosphate cycle that synthesis via…

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…

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.