Identify the source of the atoms in the pyrimidine ring

Q: Draw the Haworth structure of the tetrasaccharide:

A:

Q: Write down the amino acid sequence of the tripeptide shown below. CH3 H H₂N NH -NH,

A: The above given figure is of a tripeptide. Since we know that an amino acid sequence begins with…

Q: Identify if the following is a pyrimidine/purine nucleotide or a pyrimidine/purine nucleoside and…

A: The nucleic acids are known as polynucleotides. Monomeric units of nucleic acids are called…

Q: Determine the origin of the pyrimidine ring's atoms.

A: Pyrimidine derivatives, most notably the three nitrogenous bases that, along with the two purines,…

Q: draw the following amino acid chains and give the single and three letter abbreviations for cysteine

A: The amino acid is the smallest unit, which helps to synthesize the polypeptide chain.

Q: Write the structure formula, three-letter and one-letter abbreviation for each essential amino acid…

A: There are twenty naturally occurring amino acids that form proteins in biological systems.

Q: Name the heterocyclic substituent found in the molecule shown according to the general type of…

A: A cyclic compound containing a ring structure that has atoms from different elements (at least 2)…

Q: Explain why each of the following are reducing sugars: mannose, glucopyranose, fructofuranose, and…

A: DEFINITION FOR REDUCING SUGARS:- A  reducing sugar is any sugar that is capable of acting as  a…

Q: Draw the following sugars using Haworth projections:a. b-d-galactopyranose b. a-d-tagatopyranose c.…

A: A Haworth projection represents the cyclic shape of the carbohydrate. For sugars with a ring…

Q: Explain What are  Pyrimidines.

A: Nitrogenous bases are nitrogen-containing organic molecules that act as bases. There are four bases…

Q: Name the two purines and the three pyrimidines.

A: The purines and pyrimidines are the nitrogenous bases that are hydrophobic, planar, and weak bases.…

Q: Define hydroxyl groups.

A: The “functional groups” are explicit groupings of atoms in a molecule that have their own trademark…

Q: H CH2OH ОН A CH₂OH B C Но E CH₂OH

A: Anomeric carbon is the carbon which bears a hemiacetal or acetal or hemiketal or ketal. In the…

Q: A derivative of a triterpene that contains four fused rings is referred to as a _____________.

A: A class of the chemical compounds that are made up of 3 terpenes units is known as triterpenes with…

Q: Draw the skeletal carbon structure of triacylglycerol and highlight the ester linkage

A: Fats in humans and vertebrates are made of certain constituents called triacylglycerols. They are…

Q: Write structural formulas to represent the formation of the two dipeptides that form when leucine…

A: Peptide is a compound containing amino acids linked by peptide binds. The number of amino acids is…

Q: Describe how an ester bond is formed.

A: Esters are formed by linking two hydrocarbon groups together with an oxygen atom, or by linking a…

Q: Define pyrimidines.

A: Nucleus is the cell organelle which stores all genetic information in the form of chromosomes. The…

Q: Draw a Haworth projection and Fischer projection for a methyl α-D-mannopyranoside (methyl…

A: Carbohydrates are the major class of macromolecules, and monosaccharides (sugars) are the types of…

Q: The glycosidic linkage in nucleoside forms from the C-1' carbon of a. N-6 nitrogen of pyrimidines…

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

Q: Draw a Haworth projection and Fischer projection for a methyl a-D-mannopyranoside (methyl…

A: Carbohydrates are the major class of macromolecules, and monosaccharides (sugars) are the types of…

Q: Name the enantiomer of D-glucose.

A: Enantiomers are chiral molecules that are mirror images of one another. These molecules are…

Q: .Identify the source of the atoms in the purine ring.

A: Nucleic acids are the major class of biomolecules that are important for all forms of the organism.…

Q: Identify each of the following Haworth projection formulas as an a-D monosaccharide or a ß…

A: In alpha-D-monosaccharide, the -OH on C-1 and -CH2OH on C-5 are on opposite side and this is reverse…

Q: Write out the full structure of the tripeptide Val-Phe-Cys.

A: A peptide bond is a type of covalent bond. It connects the amino group of one amino acid with the…

Q: If L-fucose were to undergo a reaction in which its terminal -CH3 group was converted to a -CH2OH…

A: Monosaccharide can be hexose or aldose sugar. Fucose is a deoxyhexose sugar. It is present in…

Q: Draw the structure of the wax composed of stearic acid and a straight-chained alcohol with 30 carbon…

A: Waxes are simple lipids composed of fatty acids (saturated and unsaturated) which are esterified to…

Q: Starting with the open-chain form of D-ribose, write equations for the cyclization reactions that…

A: Ribose sugar can be present in open-chain or in the cyclic rings. But the form more preferred is the…

Q: Following are Fischer projections for a group of five-carbon sugars, all of which are aldopentoses.…

A: Chiral molecules can exist in the configurations that are non-superimposable mirror images of each…

Q: At pH 1, the charge on the C-terminal carboxyl group is

A: Peptide bond: When two amino acids are joined together releasing a water molecule and forming alpha…

Q: Draw the structure of alanylglutamylglycyllysine.

A: Peptides are nothing but small condensation products derived from amino acids. They appear small…

Q: Write the name and structural formulas of the different purine and pyrimidine bases.

A: Purine and pyrimidine nucleotide synthesis is an important specialized pathway for a variety of…

Q: Is the statement true or false, transition occurs when a pyrimidine is replaced by another…

A:

Q: Discuss the difference between an ⍺-D-glucose and a β-D-glucose

A: α- glucose and β- glucose both are the two cyclic hemiacetal forms of glucose which a carbohydrate…

Q: Use the diagram below to complete the cyclic alpha form of structure V. CH2OH Circle the hemiacetal…

A: The given sugar is D-Galactose. It is the C-4 epimer of glucose. The alpha and beta cyclic forms of…

Q: Draw one aromatic polar amino acid at pH 7. Label with full name, three letter abbreviation, and…

A: An aromatic amino acid (AAA) is an amino acid which contains an aromatic ring. Among the 20 standard…

Q: Write two reactions to represent the formation of the two dipeptides that form when leucine and…

A: A peptide is a sequence of amino acids involved in a condensation reaction where the carboxyterminal…

Q: Explain the meaning of the designations d and l used to specify the configuration of…

A: A chiral molecule is not the same as its mirror image and cannot be superimposed on its mirror…

Q: .) Draw the following compounds. a.) C-3 epimer of Fructose b.) C-2 epimer of ribose

A: Epimers are diastereomers that contain more than one chiral carbon centers which differ from others…

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: of the following is cytidine?

A: Cytidine(C) is a Nucleoside molecule form when cytosine attached to revise ring via β-N1 -…

Q: Identify the purines and pyrimidines commonly found in nucleic acids.

A: The most important biological substituted purines are adenine and guanine, which are the major…

Q: Thiamin, or Vitamin B1, contains a positively charged five-membered ring called a thiazolium ring.…

A: For a molecule to be aromatic, the following criteria should be fulfilled: The molecule should be…

Q: Identify if the following is a pyrimidine/purine nucleotide or a pyrimidine/purine nucleoside and…

A: Answers Image A - The given image is a Purine Nucleoside. It has deoxy ribose sugar molecule in it.…

Q: Study the given structures below. Which of the following are enantiomers? * H- OH но- - H OH но- -H…

A: Carbohydrates or carbs are maconutrient consisting of Carbon, hydrogen and oxygen atoms. In nature…

Q: Draw the structure of a disaccharide unit in a polysaccharide composed of D-glucose linked to α(1,4)…

A: Glucose and galactose are hexose (containing six carbons) monosaccharide’s and are epimers…

Q: Identify the components of an amino acid in the following diagram. (a) ______________ (b)…

A: Amino acids are compound containing carbon, hydrogen, oxygen and nitrogen. Amino acids are the…

Q: Identify the chiral carbon in each of the following compounds: a. citronellol; one enantiomer has…

A: Organic compounds are often composed of carbon, hydrogen, oxygen, and nitrogen. The structural…

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.