If guanine, found in the first base triplet, is removed, explain how this would affect the structure of the protein.

Q: Draw a tripeptide only containing Alanine

A: Amino acids are the building blocks of proteins which are composed of amino group (NH3+), carboxyl…

Q: Many of the loops on proteins are composed of hydrophilic amino acids. Why might this be the case?

A: Protein is one of the important biomolecules. This protein is made up of sequence amino acids which…

Q: Poly- L -leucine in an organic solvent such as dioxane is α helical, whereas poly- L -isoleucine is…

A: Alpha helices are structural motifs in the secondary structure of proteins in which every backbone…

Q: What does the amino acid Alanine look like at PH =2 and PH=9?

A: Alanine:  Alanine is a non-polar amino acid that belongs to Group I. The R group of these amino…

Q: Why is it important to identify the N-terminal residue(s) of a protein?

A: Protein is composed of a long chain of amino acids, which are joined by a peptide bond. These…

Q: All L amino acids have an S absolute configuration except L - cysteine, which has the R…

A: All amino acids except glycine are chiral. All naturally occurring amino acids are L-amino acids.…

Q: The pH at which the Lysine R-group is 20 % dissociated is:

A: Option a) is correct Answer

Q: What changes in the structure of each polysaccharide affect its gelling property? Explain in five…

A: The gelation occurs in polysaccharide (they form it) because of the formation of intra- and…

Q: Hemoglobin is a tetramer consisting of two α and two β chains.What level of protein structure is…

A: Hemoglobin is protein in red blood cells that is made up of four chains. Each of these chains…

Q: What changes in the structure of each polysaccharide affect its gelling property? Explain

A: Colloid polysaccharides, proteins, and synthetic polymers are used to make gels, which are solid,…

Q: What changes in the structure of each polysaccharide affect its gelling property?

A: Gels are solid and jelly-like materials formed from colloid polysaccharides, polymers and proteins.

Q: A polypeptide has a high pI value. Suggest which amino acid residues might comprise it.

A: The isoelectric point (pI) is the pH of a solution at which the net charge of a protein becomes…

Q: Most proteins contain more than 100 amino acid residues. If you decided to synthesize a “100-mer,”…

A: Protein is a macronutrient that is essential to building muscle mass.

Q: Draw isoleucine and identify any chiral carbon atoms with arrows.

A: Isoleucine is an alpha amino acid that contains alpha amino group, an alpha carboxyl group, and a…

Q: What are the Amino acids and the moieties of the following three structures?

A: The only amino acid in this compound is a phenyl alanine (enclosed within circle).

Q: Why is proline so common in the myoglobin and haemoglobin molecules at the points where the…

A: Proline is one of the twenty amino acids that is an imino acid. It is a non-essential amino acid…

Q: what are 20 different amino acid names explain each of them and explain their 3 letter dimention,1…

A: Biochemistry is a branch of biology that mostly deals with the structure, function, and interaction…

Q: Two amino acids are each specified only by a single triplet. Identify these two amino acids and the…

A: A specific sequence of three consecutive nucleotides that is part of the genetic code and that…

Q: In N-linked glycoproteins, the sugar is usually attached to the protein by a bond to the N atom in a…

A: Amino acids are the monomers of the proteins.

Q: identify an amino acid that contains a sulfhydryl side chain (complete name)

A: Amino acids are monomeric units of polypeptides. They form peptide bonds to make a polypeptide.…

Q: For each polypeptide derived in the following sequences: 5' CAA GAG GUA UCC UAC AGA 3' 5' GUC AUC…

A: Polypeptides are composed of amino acids linked to each other via  peptide bonds. The peptide bond…

Q: What is the structural flat representation of an amino acid molecule?

A: Each amino acid hai different representation due to presence of different group on them

Q: Explain how a polypeptide is constructed from aminoacids.

A: Formation of protien from amino acid is done by the proces translation. Each amino acid binds with…

Q: identify an amino acid that contains an amide side chain (complete name)

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

Q: Is the sugar in the nucleotide deoxytibose or ribose? How do you know?

A: DNA/RNA is made up of monomers of nucleotides .

Q: The amide linkages of proteins are referred to as________________________.

A: Introduction: Proteins are major biomolecules that consist of long chains of amino acids. The…

Q: What amino acids do the following abbreviations standfor? Draw the structure of each.

A: A three-letter abbreviations or a single letter code is for amino acid

Q: Two of the 20 common amino acids have two chiral carbon atoms in their structures. Identify these…

A: Amino acids are organic molecules having a center chiral carbon except for glycine, attached to four…

Q: The β-sheet structure is the secondary structure of the protein which is a sideways folded structure…

A: Protein is an organic nitrogenous macromolecule that is required for human health. In the human…

Q: Why is it important to specify the three-dimensional structure of amino acids?

A: Amino acids are the biomolecules that act as a polymer for the synthesis of protein and these are…

Q: Why is proline frequently encountered at the places in the myoglobin and hemoglobin molecules where…

A: mRNA is translated to form proteins in the cytoplasm. The protein's primary structure (amino acid…

Q: Is this an L or a D amino acid? Explain.

A: Amino acids are the building blocks of proteins which are composed of amino group (NH3+), carboxyl…

Q: Which of the followings is not a structural polysaccharide?

A: Polysaccharides consist of hundreds or thousands of monosaccharide units. Polysaccharides are also…

Q: What is the natural polysaccharide whose repeating structure can be symbolized by GlcUAβ(1 →…

A: Hyaluronic acid.

Q: A polypeptide has a high pI value. Suggest which aminoacids might comprise it

A: A polypeptide chain having a high pI value comprise of following amino acids : Lysine, arginine.

Q: How do the "R" groups of amino acids contribute to the 3-D shape?

A: The R-groups of amino acids, also known as the side chain, confer various chemical properties to…

Q: Draw a structural formula for a nucleoside composed of the following. Q.) a-d-Ribose and adenine

A: Nucleosides are glycosylamines that are made up of nitrogenous base (purine or pyrimidines) and…

Q: Predict the geometry around each carbon atom in the amino acid alanine.

A: Molecular geometry can be predicted from the structure by using the valence-shell Electron-pair…

Q: From the sequence D-I-LI-G-A-F, how many amino acids are aromatic?

A: Amino acids : There are hundreds of amino acids present in the living organisms. Amino acids are…

Q: What structural consideration prevents the bases A and G from forming a complementary base pair?

A: Adenine and guanine are purines which have two rings in their structure. In DNA, one pair has a…

Q: A nucleoside consists of an organic base, bound to ribose or deoxyribose. Draw the structure for…

A: Nucleotides are the monomers of nucleic acids, DNA and RNA. A nucleotide is composed of a…

Q: What is the quarternary structure of the protein leptin?

A: Leptin is a hormone produced mostly by adipocytes and enterocytes in the small intestine. It helps…

Q: Two proteins with the same amino acid composition do not have the same primary structure. Explain…

A: Protein  Proteins are the polymers of nitrogenous compounds called amino acids. Each amino acid…

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: There are three possible levels of structure for a polypeptide:primary, secondary, and tertiary.…

A: Proteins are unbranched polymers constructed from 22 standard alpha-amino acids. They have four…

Q: Does amino acid sequence or amino acid composition have more of an impacts the protien structure?

A: Amino acids are compounds containing carbon, hydrogen, oxygen and nitrogen. They serve as monomers…

Q: There are 20 standard amino acids and only 10 major monosaccharides in eukaryotes, yet there are so…

A: The biological macromolecules can be classified as nucleic acids, proteins, carbohydrates and…

Q: Is serine chiral? Draw serine and identify the chiral atom. Explain why serine is chiral.

A: A Chiral carbon is an asymmetric carbon atom that consists of four different atoms which are…

Q: Explain why there are 20 standard amino acids and only 10 major monosaccharides in eukaryotes, yet…

A: Proteins are biomolecules made up of amino acids. There are 20 standard amino acids, which are…

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.