Why are two equivalents of base required to prepare the active thiamine catalyst?

Q: Can we determine the type of monosaccharide with the Molisch experiment?

A: Carbohydrates have the chemical formula Cn(H2O)n and are organic molecules. This formula, however,…

Q: Why is a thioester bond a “high-energy” bond?

A: Thioesters are considered the same as ATP, which is an important source of energy for performing…

Q: What are the analogues of purine and pyrimidine?Write with its mechanism.

A: Nitrogenous bases that comprise the two distinct forms of nucleotide bases in DNA and RNA are…

Q: What are the most common per-and polyfluoroalkyl (PFAS) species found in water? The PFAS are still…

A: Per-and-fluoroalkyl (PFAS) chemicals have been used for decades to give non-stick, stain-and…

Q: What is the pH at which the tripeptide Gly-Ala-Gly has a net charge of 0?

A: The net charge of a peptide is calculated by adding the charges of amino and carboxy terminal of the…

Q: What are some examples of biochemical tests for proteins that involve acid hydrolysis or base…

A: Proteins: Proteins are complex high-molecular-weight molecules that consist of amino acids joined…

Q: What shape do carbohydrate chain linked with alfa (1,4) glycosidic bonds generally have ?

A: By utilizing energy to establish glycosidic linkages, which are the bonds between monosaccharides…

Q: Draw the dipeptide that forms between alanine and glycine. Identify the net charge of this dipeptide…

A: A molecule is protonated at extreme low pH, as the pH increases more than pKa of an ionizable…

Q: What reagents promote cross-linking between acrylamide and bisacrylamide to form polyacrylamide gel?

A: Polyacrylamide gels are used for the separation of biomolecules. The polyacrylamide gels are…

Q: The explosive trinitrotoluene (TNT) is made by carrying out three successive nitration reactions on…

A: Trinitrotoluene (TNT) is a chemical compound is a yellow solid is occasionally used as a reagent in…

Q: When discussing sugars, what do we mean by an intramolecular hemiacetal?

A: Hemiacetal is the molecule that is formed due to the interaction between alcohol and and aldehyde…

Q: What is the property/characteristics of DNA that makes it insoluble to ethanol/isopropyl alcohol?

A: The mechanical separation of the nuclear contents from the remainder of the cell, accomplished by…

Q: Why are furanoses and pyranoses the most common cyclic forms of sugars?

A: The cyclic form of the sugars is formed through a nucleophilic reaction between the carbonyl group…

Q: Potentiometric titration curve is given below, which is obtained during the potentiometric titration…

A: Asked : Question related to the shown titration curve x,y represent Volume of KOH, pH of solution…

Q: What are the structural differences between (a) purines and pyrimidines, and (b) ribose and…

A: a) Structural differences: [purines & pyrimidines]         The purines structure comprises of…

Q: structure, origin and catalytic role of Flavin nucleotides

A: Structure  and catalytic role of Flavin nucleotide :

Q: What is the definition of hydrolosis reaction?

A: In human body, digestion and glucose metabolism are examples of hydrolysis reaction. Solubilization…

Q: What does it mean to describe a glycosidic bond as β-1,4-? To describe it as α-1,6-?

A: A glycosidic bond or glycosidic linkage is a type of covalent bond that joins a monosaccharide…

Q: What Is A Cross-reaction?Give An Example Of Cross-reaction?

A: Cross-reaction is the process of an antiserum against the antigen molecules, not present in the…

Q: Identify the conjugate acid-base pairs in the following reactions:    HNO2(aq)       +…

A: Acids are substances that give H+ ions.  The base is any substance that can accept a proton or…

Q: What is the pH of a solution with a hydroxyl ion (OH-) concentration of 10^-10M?

A: pH is defined as the negative decimal logarithm of concentration of hydrogen ion in a solution. It…

Q: If the phosphorus atom in 3-phosphoglycerate is radioactively labeled, where will the label be when…

A: Glycolysis is a reaction in which one molecule of glucose gets converted into 2 molecules of pyruvic…

Q: How to separate cyclo-dopa-glucoside from betalamic acid ?

A: Cyclo-dopa-glucoside is an indoxyl carbohydrate that is cyclodopa in which the phenolic hydrogen at…

Q: What chemical is used for reduction of disulfur bridges in protein?

A: Disulfide bonds play a secondary role in maintaining protein structures against denaturation, they…

Q: Why is this compound achiral?

A: A plane of symmetry in the molecular framework of 1-chloro-3-methylcyclobutane causes it to be…

Q: What is the approximate net charge of carnosine at pH 5.

A: Carnosine, also known as beta-alanyl-L-histidine, is a dipeptide . It is made up of the amino acids…

Q: Identify the monomers for the following polymers A.) Maltose B.) Sucrose C.) Lactose

A: INTRODUCTION Monomers are building blocks of polymers. The above mentioned compounds are…

Q: How to separate r and s isomers of tetrahydrofuroic acid by normal phase chromatography?

A: Normal phase HPLC uses many different stationary phases, including silica, alumina, diol, cyano, and…

Q: Draw the structures of the following acids:(a) 2-Ethyl-3-hydroxyhexanoic acid (b) m-Nitrobenzoic…

A: Acids are those chemical compounds, which are known to lose (H+) protons in the solution.

Q: What structural feature is necessary for an alcohol to undergo oxidation reactions?

A: Oxidation of alcohols is also known as Dehydrogenation reaction. In human body, many reactions take…

Q: what is pyrimidine nitrogenous bases ?

A: A nucleotide has three components namely, A nitrogenous base A pentose sugar (ribose in case of…

Q: what is the conjugate acid for the following reaction?  HC2HO4 + H2O H3O+ + C2HO4- A)C2HO4- B)…

A: Conjugate acid is a compound, which donates protons or hydrogen in the chemical reaction.

Q: What are the sources of the carbons and nitrogens in thepurine bases?

A: Biomolecules are organic molecules that function in metabolic pathways. The metabolic pathways are…

Q: Why Ranitidine is better than Cimetidine ?

A: Drug therapy aids in the treatment of various medical conditions by the administration of a drug…

Q: Threonine has two chiral centers. Draw L-threonine and indicate which carbon atoms are chiral. Which…

A: Threonine was a  polar and uncharged amino acid. where the polarity was contributed by the hydroxy…

Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.