Draw one of the possible dipeptides that could be formed between serine and lysine. Add charges to ionizable groups that would be present at neutral pH.

Q: Why is the ionic bond between, say, the side chain of lysine and the side chain of glutamic acid…

A: Amino acids are the molecules that join to form a protein structure. The bond formed between two…

Q: Sketch out a structure of tyrosyl-glycyl-lysine at a pH of 13

A: Amino acids are the monomeric unit of polypeptides that give proteins. There are 20 amino acids that…

Q: 5) List the names of the 5 different base pairs and their letter code. Identify if they are…

A: A base pair is a fundamental unit of double-stranded nucleic acids consisting of two nucleobases…

Q: Amino Acids

A: Amino acids:These are the fundamental building blocks of proteins.These play essential roles in the…

Q: Draw all the possible tripeptides of serine, methionine, and glycine and name them.

A: The peptides that are made up of three amino acid sequence are termed tripeptides. These amino acids…

Q: Draw the polypeptide GRADE, write its full name and net charge at pH 7. How many peptide bonds are…

A: Biomolecules are those compounds that are needed for the survival of living organisms. Amino acids…

Q: Draw the tetrapeptide WERP at pH 7.2, with the C-terminal peptide bond in the cis conformation

A: Biomolecules are organic molecules made up of mainly carbon and hydrogen but there are other…

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: Draw a diagram of the histidine side chain in the protonated and unprotonated states. Show the…

A: The four types of biological macromolecules are proteins, nucleic acids, carbohydrates and…

Q: This reaction is exergonic because the reactants have more potential energy than the products.

A: the exergonic reaction is a kind of reaction when energy is released.

Q: Calculate and draw a line graph of the pI of the following: a. Histidine b. Arginine c. Aspartic…

A: pI: the pH at which an amino acid exits as a zwitter ion is called iso electric point. It is…

Q: Draw the structure of the NDPH peptide at pH 2, with the prolyl peptide bond in the cis…

A: The peptide NDPH sequence is :  H2N- asparagine-aspartate-proline-histidine-COOH

Q: A) Draw L-histidine. Label all ionizable groups with the appropriate pKa.

A: Introduction: Histidine is one of the 20 amino acids with imidazole ring that is highly basic by…

Q: 2) For the following amino acids, encircle those with a net charge of -2 at high pH underline those…

A: Alanine, valine, leucine, and isoleucine are hydrophobic amino acids with an alkyl group in their…

Q: Diagram and describe Van Der Waals interactions between valine and phenylalanine that help to…

A: Van der Waals interaction are dipole-dipole interactions between uncharged atoms. The dipoles could…

Q: Consider the structure of the tripeptide below. H H₂N-C-C- 0=6 CH₂ CH₂ C=0 1 NH₂ pH 5: O pH 10: H O…

A: The given peptide has three amino acids joined by the peptide bond. There are three ionizable groups…

Q: What would the net charge be of a polypeptide with the sequence M-D-R-N-Q-K at pH 8? hint ionizable…

A: Amino acids are the simplest units for the formation of peptides or proteins. The amino acids are…

Q: B-sheets exist only in fibrous proteins. The a-helix is stabilized by hydrogen bonds petween C=O and…

A: Protein is the abundant biomolecule present in the living system. It is a nitrogenous macromolecule…

Q: In a subunit of a protein, arginine and aspartic acid have an ionic interaction between their side…

A: Polar Amino Acids are a type of amino acid that is found in the ocean. Arginine, asparagine,…

Q: a) Draw a non-covalent interaction between a water molecule and the charge on a phosphorylated…

A: Unlike covalent interactions where there is sharing of electrons between two atoms, in non-covalent…

Q: Within a naturally-occurring polypeptide, under neutral pH conditions (pH = 7.0), which of the…

A: Proteins are macromolecules composed of polypeptides which contains more than 20 amino acids. Each…

Q: A direct curren was passed through a solution containing valine, histidine, and aspartic acid a pH…

A: Amino acids are composed of carbon, nitrogen, hydrogen, and oxygen atoms. Each amino acid has a…

Q: Would you consider the formation of a peptide bond to be an example of a neutralization reaction?…

A: Introduction : Aminoacids are the building blocks of the proteins. Many aminoacid link with each…

Q: Each amino acid in a run of several amino acid residues of a polypeptide chain have phi values of…

A: Ramachandran plot gives the statistical distribution of the combinations of the dihedral angles ϕ…

Q: Draw the structure of the following: (in the image provided) Use the amino acids below. F -…

A: Recall that: Amino acids have an amino group, a carboxyl group and a side linked to the same carbon…

Q: Describe the mechanism behind the hydrophobic effect. Support your description with one drawing.

A: The hydrophobic effect is the tendency of nonpolar molecules to aggregate in aqueous solutions. This…

Q: Within a naturally-occurring polypeptide, under neutral pH conditions (pH = 7.0), which of the…

A: According to central dogma, the final synthesis in the body is from the RNA to protein. As the…

Q: Which of the following statement is not true?     In a secondary structure the consecutive…

A: The secondary structure of a protein refers to the spatial arrangement of the main chain atoms of…

Q: Your vaccine will be administered as a topical cream, and you require your peptide to have an…

A: A topical drug is one that is applied to a specific area of the body or to a specific organ. Topical…

Q: Which of the twenty naturally occurring amino acid side chains are charged at a pan of 1.00? pH of…

A: Amino acids can be defined as organic compounds which comprise of both amino & carboxylic acid…

Q: Consider beta-sheet comprised of twelve amino acid residues (two strands of six residues each). How…

A: Proteins are the macro molecules that show great diversity in their structure. They show four levels…

Q: The 2',3'-cyclic phosphodiester that is formed (Figure 26.7) when RNA is cleaved, forms a mixture of…

A: RNAase Cleaved the RNA.

Q: a peptide has the sequence: Asp-His-Tyr-Asn. What is the net charge on this molecule at pH 7.2?

A: Given peptide has the sequence Asp-His-Tyr-Asn. The net charge on this peptide depends upon the pKa…

Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.