Most aminotransferases use which α-ketoacid as their amino group acceptor? A、α-ketoglutarate B、Pyruvate C、α-ketoglutamate D、alanine E、Oxaloacetate

Q: Why are transamination reactions important in both thesynthesis and degradation of amino acids?

A: Transamination reactions are the process by which amino groups and transferred to acceptor keto…

Q: List the essential amino acids for a phenylketonuric adultand compare them with the requirements for…

A: Phenylketonuria (PKU) is defined as a rare genetic human condition. It causes an amino acid called…

Q: Which step in lipid metabolism would you expect to be affected by 3,4-dihydroxybutyl-1-phosphonic…

A: Lipid metabolism is the synthesis and degradration of lipids in cells, involving the breakdown or…

Q: Write in detail about the properties of Beta-glucanase.

A: Beta Glucanase is an accelerator that hydrolyzes β-glucans. ... β-Glucanases are vital in this…

Q: 16.76 Give the substrate of each of the following enzymes: (16.4) a. maltase b. fructose oxidase c.…

A: Enzymes are proteins that catalyse biochemical reactions, hence referred to as bio-catalysts. They…

Q: What is the relationship between -ketoglutarate, glutamate, and glutamine in amino acid anabolism?

A: Different organisms have different capacity to synthesize amino acids. Plants can produce all the…

Q: 6. Using the figure above. It may be helpful to write

A: Krebs cycle is the breakdown of acetyl coA in mitochondrial matrix of eukaryotes.

Q: Chymotrypsin is a digestive enzyme with a catalytic optimum between pH 7.8 and 8.0. However, due to…

A: Proteases are enzymes that cleave peptide bonds that link two amino acid residues together.…

Q: What is lactose intolerance? Discuss diet therapy employed for those experiencing the said…

A: Lactose is the sugar present in milk and dairy supplements. Lactose is a large sugar molecule that…

Q: Only one acetyl CoA molecule is used directly in fatty acid synthesis. Identify the carbon atoms in…

A: Fatty acids are the biomolecules that are formed of a long hydrocarbon chain attached to the…

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 are the nonoxidative reactions of the pentose phosphate pathway, and why are they important?

A: Pentose phosphate pathway is an alternative to glycolyis and TCA cycle for oxidation of glucose.…

Q: What are the structural differences between pyruvate and lactate ions?

A: Pyruvate is the end product of aerobic glycolysis while lactate is the end product of anaerobic…

Q: Define the term GABA (gamma-aminobutyric acid)?

A: GABA (Gamma Aminobutyric Acid ) is a natural occurring amino acid that work as a neurotransmitter in…

Q: 15.26) In transamination reactions, a-ketoglutarate is converted to glutamic acid. The other…

A: Transamination is defined as a reaction where the amino group from amino acid is transferred to a…

Q: What are the two pathways of amino acid catabolism? Discuss briefly

A: Amino acids are the constituents/building blocks of proteins. They have an alpha carbon bonded to 4…

Q: An individual with an argininosuccinase deficiency is administered benzoate and arginine. This…

A: Argininosuccinase deficiency is a condition where the cells are devoid of an important enzyme i.e.…

Q: 2-year old girl presents with steatorrhea and is diagnosed with pancreatic lipase deficiency. She is…

A: It is a autosomal recessive disorder and is characterized by exocrine pancreatic failure. It is…

Q: 20.14 Predict the name of the enzyme that catalyzes each of the fol- lowing reactions: a. hydrolyzes…

A: Catalysts are molecules that elevate the rate of the chemical reaction without undergoing any change…

Q: Describe the structures of glutamine and alanine.  What are the characteristics of the R-groups?…

A: There are four types of biological macromolecules: nucleic acid, proteins, lipids and…

Q: Name the anabolic pathway that synthesizes fatty acids.

A: Fatty acid synthesis is the important anabolic pathway in most organisms which involves de novo…

Q: a) What is the overall function of pyruvate carboxylase? b) Describe the role of each of the four…

A: (a) A metabolic enzyme called pyruvate carboxylase takes part in the first stage of gluconeogenesis.…

Q: In amino acid synthesis- C transfers: a-ketoglutarate, serine O tetrahydrofolate, glutamate…

A: Amino acids These are the basic building blocks of proteins. In proteins, amino acid residues are…

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 many -amino acids participate directly in the ureacycle? Of these, how many can be used for…

A: Amino acids are biomolecules that act as the building blocks of proteins. Alpha-amino acids are the…

Q: Explain the relationship between a-ketoglutarate, glutamate, and glutamine in amino acid anabolism?

A: Amino acid anabolism means formation of amino acid. There are total 20 amino acids known. Glutamate…

Q: (b) The structure of the antibiotic Chloramphenicol is shown in (Figure Q15b). What type of…

A: the given molecule chloramphenicol is an antibiotic which is broad spectrum as it cat against gram…

Q: Indicate which of the following amino acids are ketogenic and which are glucogenic: a. tyrosine b.…

A: Amino acids are classified into glucogenic and ketogenic based on the type of intermediate that is…

Q: 15.26) In transamination reactions, a-ketoglutarate is converted to glutamic acid. The other…

A: Oxidative deamination is a metabolic process by which an amino acid undergoes deamination, leading…

Q: What is the common end-product of the catabolism of the branched chain amino acids that are…

A: Amino acids are converted to the TCA cycle intermediates through transamination reactions. The TCA…

Q: Define the following terms: a. ketogenic amino acid b. glucogenic amino acid c. L-amino acid oxidase…

A: There are 20 different amino acid participated in the protein synthesis. They are a precursors of…

Q: what will be the effect of hot dry conditions in the carboxylase activity of RuBisCO?

A: Introduction: RUBISCO (ribulose 1,5 bisphosphate carboxylase/oxygenase) is an enzyme present in…

Q: Is liver catalase active within a narrow or broad ph ran

A: An enzyme is a molecule with speed up the rate of a biological reaction without being consumed in…

Q: Describe the nitrogenase complex. How is the enzymeorganized? What are its unique components?

A: Nitrogenase complex constitutes dinitrogenase reductase which is an iron-sulphur protein,…

Q: What are the two essential amino acids in the active site of chymotrypsin?

A: Serine-195 and Histidine-57 (involved in catalytic actions) are the  two essential amino acids in…

Q: What if C-1 of the oxaloacetate were labeled instead, when would the label be released as CO2?

A: Oxaloacetate is a four-carbon compound, and carbon-1 (C-1) refers to the first carbon atom in the…

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…