What type of intermolecular forces exist between the side chains of each of the following pairs of amino acids? a. isoleucine and valine c. Lys and Glu b. threonine and phenylalanine d. Arg and Asp

Q: How can the phosphorylation of a protein result in conformational changes?

A: Phosphorylation generally alters the structural as well as functionality of protein. It alters the…

Q: Draw the structures of aspartate and lysine in the L configuration and demonstrate how the side…

A: Amino acids are biomolecules that form the protein. There are many hormones and neurotransmitters…

Q: Adjacent amino acids are linked together by the formation of a peptide bond between which of the…

A: In biological molecules, two main types of bonds are found that is covalent and non-covalent bonds.…

Q: Describe the 'peptide backbone' of a polypeptide. How are the 'R' groups oriented along the peptide…

A: Introduction: A polypeptide is a chain of amino acids. Amino acids bond together with peptide bonds…

Q: What form exists at the isoelectric point of each of the following amino acids: (a) valine; (b)…

A: The isoelectric point of amino acid is the pH at which amino acid has no net charge and shows no…

Q: Select the two most hydrophobic amino acids. A. Leucine and Isoleucine OB. Arginine and Lysine OC…

A: Hydrophobic amino acids are non-polar and insoluble in water and soluble in other non-polar…

Q: Write down the  structure of the amino acid asparagine and explain why you would classify it as an…

A: Amino acids are the smallest units of proteins and polypeptides. Amino acids differ from each other…

Q: In order for hydrogen bonds to form between nucleotides, which of the following needs to be true?…

A: In order for hydrogen bonds to form between the nucleotides, they need to be in the opposite…

Q: If the amino acids alanine and glycine react to form a peptide bond, is there more than one reaction…

A: Amino acids are made up of a central carbon atom, a carboxyl group, an amino group, and an R group…

Q: If you eat a serving of fish, what reactions must occur for the amino acid monomers in the protein…

A: Amino acids are building block of the amino acids. Amino acid forms a peptide bond by joining two or…

Q: What type of bond links amino acids together as proteins are built? A. ionic O B. peptide O C. polar…

A: The proteins are the biomolecules that are found in all organisms. The monomers of the proteins are…

Q: Which of the following is not a branched-chain amino acid? A. Valine B. Isoleucine C. Leucine D.…

A: Amino acids can be classified into aliphatic, aromatic, sulphur containing, polar, non polar and…

Q: List down which amino acids are capable of the following interactions in the tertiary structures of…

A: There are 20 standard amino acids are there which make up all the proteins inside the cell. Amino…

Q: Using the amino acid phenylalanine, draw and specify the nature of each following tertiary structure…

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

Q: How many amino acids and peptide bonds does a tetrapeptide have?

A: Ans- A) four amino acids and three peptide bonds Tetrapeptide is a peptide also known as…

Q: What type of noncovalent interaction occurs between the glutamine and threonine side chains? Draw…

A: Non-covalent interactions are the weekly sharing of electrons between the atoms whereas it was an…

Q: Which of the following biomolecules contain nitrogen?(a) Glycogen (Chapter 22)(b) Nitric oxide…

A: Biomolecules are organic compounds, which serve several functions and maintains the body.

Q: Which of the following is the C-terminal amino acid in the polypeptide…

A: In a polypeptide chain, the amino acid consist of an amino group on the alpha carbon atom at one end…

Q: Perform two dehydration synthesis reactions to produce a tripeptide. Which functional groups are…

A: A tripeptide is a peptide which is derived from three amino acids that are joined by two or…

Q: Draw amino acids Methionine, Phenylalanine, Valine, and Phenylalanine

A: Introduction: Amino acids are organic compounds that contain the functional groups amino (–NH2) and…

Q: Peptide bonding between amino acids in a polypeptide is an example of which type of chemical…

A: A chemical bond is a bond formed because of the force of attraction between atoms, ions, molecules,…

Q: N-linked oligosaccharides can be covalently linked to proteins at which amino acid?   a.  Gly  b.…

A: Glycoproteins are known as specialized proteins that are composed of oligosaccharide chains i.e,…

Q: what type of intermolecular forces exist between the side chains of each of the following pairs of…

A: Proteins can exist in multiple levels of structures. The highest structural level possible for a…

Q: Side chains of which two amino acids may participate in peptide bonding? A. Alanine and Glycine B.…

A: Peptides and polypeptides are linear and unbranched polymers of amino acids linked together by…

Q: Which of these amino acids could be found in the transmembrane portion of a protein? a)…

A: Proteins are one of the major macromolecule in the living organisms. They have many structural and…

Q: Tyrosine is an amino acid. Which atoms in this molecule can form hydrogen bonds?

A: Tyrosine is an aromatic amino acid due to the presence of a phenyl ring in its side chain. Primary…

Q: A friend, while frying some eggs, points to the change in the egg white (which contains a protein…

A: Proteins are the ultimate products of the genes. Peptide bond is bond which is formed between two…

Q: Which of the following pairs of amino acids stabilizes a fold in a polypeptide chain through ionic…

A: Proteins are composed of a linear chain of amino acid sequences attached via peptide bonds. Proteins…

Q: Valine is an amino acid with a nonpolar side chain and serine is one with a polar side chain. Draw…

A: Amino acids are building blocks of proteins. Based on the polarity amino acids are grouped into four…

Q: Define the following terms: a. eicosanoid b. omega-6 fatty acid c. omega-3 fatty acid d. trans fatty…

A: a. eicosanoid: Eicosanoids are signaling molecules formed by oxidative metabolism of 20 carbon…

Q: Between which two amino acids do disulfide bonds form? A.Alanine-Glycine B.Serine-Threonine…

A:

Q: Which of the followings are sulfur-containing amino acids? Serine and Threonine O Glutamate and…

A: Sulfur is the 3rd most abundant mineral in our body after calcium and phosphorous and it plays…

Q: Which amino acid is hydrophilic (dissolves in aqueous solutions)? Why?(a) isoleucine (b)…

A: Aminoacids are grouped into four categories based on polarity and they are  1.Nonpolar, aliphatic R…

Q: How many different molecules composed of (a) two, (b) three, and (c) four amino acids, linked…

A: Proteins are the polypeptide chain of amino acids that are held together by the peptide bonds. These…

Q: Which of the following pairs of amino acids can form hydrogen bonds between their side-chain groups?…

A: A hydrogen bond is formed between a molecule that can act as a hydrogen bond donor and a molecule…

Q: Which of the following statements is incorrect about disulfide bonds? a. They form between two…

A: Amino acids are molecules that join to make proteins. The digestion of proteins or breaking leaves…

Q: Branched-chain amino acids are important in metabolic processes for all of the following reasons…

A: Amino acids are generally used to make protein and poly peptide chain

Q: Which amino acids contain the following? a. sulfur/sulfhydryl group b. aromatic group c. imidazole…

A: Amino acids are the monomer units that make up the polymer called proteins. They are connected to…

Q: A new drug is developed which selectively cleaves covalent bonds between two sulfur atoms of…

A: Proteins are formed from amino acids as polypeptide chains. That is the primary structure of…

Q: The immediate donors of the nitrogen atoms of urea are: a. Aspartate and glutamate b. Glutamate and…

A: Urea cycle is a cyclic pathway related to the synthesis of urea, one nitrogen is derived from free…

Q: Which one of the following pairs are semi-essential amino acids for humans?  A. Histidine and…

A: Introduction: The correct choice is option C. Arginine and Histidine

Q: Why is an amino acid called a "residue" in a protein but not an "amino acid"?

A: The proteins are made up of monomers of amino acid that are made up of four different groups in…

Q: Look at Table 18.3 and identify the type of noncovalent interaction expected between the side chains…

A: Non-covalent : Non covalent interaction differs from a covalent bond in that it does not involve the…

Q: Which of the following bonding types is the most important in the nonaqueous interfaces between…

A: The right option is (c) Disulfide bridges

Q: Which of the following amino acids is polar in nature? A. Aspartic acid B. Alanine C. Proline D.…

A: On the basis of polarity amino acid can be divided into polar and no npolar amino acids.

Q: O-linked glycosylation occurs on ___ residues of proteins. a) Serine and Threonine b) Asparagine c)…

A: The attachment of sugar moieties to protein forms glycoprotein. It is one of the post-translation…

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.