Describe the mechanism of the nitrogenase complex in which N2 is converted to NH3.

Q: Write a balanced equation for the synthesis of TMP from dUMP that is coupled to the conversion of…

A: Biomolecules are organic molecules that occur in living systems. Biomolecules include carbohydrates,…

Q: A fatal mistake in research problem selection is a. a) refining your idea upon review of the…

A: Research starts with describing the research problem precisely, i.e. what we want to solve and what…

Q: Bacterial species that are capable of synthesising the amino acid histidine do not need it in their…

A: Introduction Histidine is synthesized from phosphoribosyl pyrophosphate (PRPP), which is made from…

Q: A species of bacteria can synthesize the amino acid histidine, so they do not require histidine in…

A: Feedback inhibition is a mechanism to control cellular activity. The activity of the enzyme is…

Q: The pathway for cystiene synthesis in E.coli involves five precursor compounds, compound A-E. The…

A: Auxotrophs are nutritional mutants that are unable to synthesize a metabolite essential for their…

Q: Explain how the prolong intake of antacids can lead to vitamin B12 deficiency?

A: Vitamins are the micronutrients, these are required in very less amount. These can be consumed from…

Q: Show the steps by which a glycolytic intermediate can be converted into serine.

A: Since serine is a non-essential amino acid so it can be taken up by the cell either from glycolytic…

Q: Explain the logic behind having [ADP] regulate the conversion of ribose-5-phosphate to PRPP. Does…

A: ADP is a nucleotide formed of adenine, ribose sugar, and two phosphate groups. Since adenine is a…

Q: Explain briefly why ammonia toxicity can result from the consumption of an arginine-deficient diet.…

A: Ammonia is the metabolic waste of protein metabolism. Excessive ammonia is toxic to the human body;…

Q: Hydroxyurea has been shown to increase the expression of fetal hemoglobin in adult red blood cells,…

A: Sickle cell anemia is the disorder in which abnormality in oxygen carrying hemoglobin present in red…

Q: The enzyme dihydrofolate reductase (DHFR) normallL can be imported into mitochondria by appending a…

A: This is because methotrexate acts as a competitive inhibitors against the mitochondrial signal…

Q: Name three enzymes that are likely the source of bicarbonate ion that is involved with the formation…

A:

Q: a) Based on the mechanism shown in Figure 2A, what type of enzyme is transpeptidase? : Lyase…

A: Note : Hi ! Thank you for the question. We are authorized to answer three subparts at a time. Since…

Q: What is the oxidation state of sulfur in SO42?

A: Oxidation number, also called as oxidation state is the total number of electrons which an atom…

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: Write out a mechanism for the serine triad hydrolysis ofglycylglycine.

A: The dipeptide unit of glycine is glycylglycine. Serine proteases are a group of enzymes that contain…

Q: What's the role of VDAC1 mitochondrial protein in human diseases?

A: Mitochondrial proteins are proteins present within the mitochondria of cells, including within the…

Q: Which complex contains Succinate dehydrogenase and what are the roles of thisenzyme?

A: Succinate dehydrogenase is a part of the cellular biochemical machinery for breaking down sugars,…

Q: propose a mechanism for the TPP- dependent step in isoleucine biosynthesis. draw the prdicted…

A: Co-factors are non-protein components of holoenzyme that helps in the functional activity of an…

Q: How can a person suffering from Adenosine Deaminase deficiency be cured?

A: Introduction In this question we will discuss about how a person suffering from Adenosine Deaminase…

Q: for GABA transaminase, ornithine decarboxylase, and alanine

A: PLP-dependent enzymes catalyse a wide range of reactions that result in bond cleavage at the carbons…

Q: Explain why cleavage of the bond between arginine 15 and isoleucine 16 of chymotrypsinogen activates…

A: Enzymes are known as biological catalysts in which help to catalyze the different biochemical…

Q: Which three mammalian enzymes can potentially react with and thereby decrease the concentration of…

A: Enzymes are the biocatalysts that can speed up chemical reactions. Ammonium cations are polyatomic…

Q: Explain why mutations of the Arg residue in Gsα that is ADPribosylated by cholera toxin are…

A: A potential virulence factor developed by Vibrio cholerae, which is the causative factor of cholera…

Q: How is inosine monophosphate converted to AMP and GMP?

A: Inosine monophosphate (IMP) is a nucleotide and an important derivative of inosinic acid include the…

Q: Which enzyme catalyzes the reaction?

A: Proteases are usually synthesized as a zymogen. They are activated by proteolytic cleavage by other…

Q: Which of the following dephosphorylates PI 3,4,5-trisphosphate, thereby blocking the activation of…

A: The survival and growth is promoted by the PI3K-Akt signaling pathway. Protein Kinase B and…

Q: PFK-1 is actually a tetramer with four identical active sites that produced fructose…

A: PFK-1 Phosphofructokinase-1 or PFK-1 is an important regulatory enzymes of the process glycolysis.…

Q: What are the fates of carbons from the ketogenic amino acids? And Name three degradation…

A: Amino acids that are converted to acetoacetyl CoA or acetyl CoA are referred to as ketogenic amino…

Q: The authors in the abstract given above describe the mechanism for the activation of metallothionein…

A: Many heavy metals are toxic to humans. Certain proteins (like metallothionein) have the ability to…

Q: How many GTP molecules are produced in the TCA cycle when you start with a fatty acid molecule that…

A: A fatty acid molecule (18 C) produces more amount of ATP (120) when compared with a glucose…

Q: In the salvage of purines, hypoxanthine-guanine phosphoribosyltransferase (HGPRT) is responsible for…

A: Purines are heterocyclic rings made up of a five-membered ring fused to a six-membered ring.…

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.