N-linked oligosaccharides can be covalently linked to proteins at which amino acid?   a.  Gly  b.  Ser  c.  Glu d. Tyr e. Asn

Q: Which component of an amino acid confers its uniqueness with respect to other amino acids? In other…

A: Introduction  The chemical substances known as amino acids are what make up proteins. They are made…

Q: Which of the following statements about chaperones is FALSE? a.   Chaperones prevent incorrect…

A: Proteins mostly get folded into their native states spontaneously. Some proteins require assistance…

Q: The pKa of the protonated, positively charged form of the side chain of histidine is approximately…

A: Given, the pKa of the protonated, positively charged form of histidine  is pKa = 6.

Q: which is true when speaking about the secondary structure of a protein A. invoves R group binding

A: Proteins are the final end products of the decoding process that starts with the DNA of the cell.…

Q: Draw each amino acid in its dipolar ion form. a. Thr b. Ala c. Leu d. Lys

A: Introduction: Amino acids are organic compounds of amino (–NH2) and carboxyl (–COOH) functional…

Q: Which of the following is incorrect? Oa. Asp and Glu are basic amino acids Ob. Asp and Glu are (-)…

A: Basic amino acids are those amino acids that have positively charged side chains (are basic amino…

Q: What are some differences between the followingpairs? a. secondary and tertiary proteinstructures…

A: Proteins are composed of amino acids attached in a linear form through peptide bonds. Twenty…

Q: Acid hydrolysis of proteins in order to determine the amino acid composition leaves most of the…

A: Proteins are biomolecules made up of amino acids that are linked by peptide bonds. When proteins…

Q: 1. Indicate whether each of the following molecules is an alpha amino acid or not and explain why. a…

A: The -amino acids get their name from the fact that the alpha-carbon atom in the molecule has an…

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: All of the following are basic amino acids, except_ A. Histidine B. Arginine C. Lysine D. Glycine

A: Amino acids can be divided into basic amino acids and acidic amino acids.

Q: Which of the following amino acid pairs may form hydrogen bonds between their sidechains (select all…

A: Amino acids are biomolecules formed of an amino group, carboxyl group, and a variable R group…

Q: Which of the following combination is are non-essential amino acids?   A. Leucine and Isoleucine…

A: Proteins are polymers of amino acids, which suggests proteins are made from amino acids. Amino acids…

Q: The net charge of the dipeptide GD at pH 8.0 is: (pKa ‘s amino terminal is 10, pKa carboxy…

A: Proteins are the building blocks of the body. They are biomacromolecules composed of one or more…

Q: Which of the following describes lactose? A. A nonreducing disaccharide containing glucose and…

A: Lactose is a disaccharide derived from the condensation of galactose and glucose with the molecular…

Q: Which of the following is/are epimer/s of glucose?*   A. Galactose only B. Mannose only C. Fructose…

A: Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketones, or compounds that can be hydrolyzed…

Q: Which of the following amino acids contains an R group that can form hydrogen bonds?

A: Amino acids are a group of organic compounds containing two functional groups- amino and carboxyl.…

Q: At the center of all 20 standard amino acids is what is termed the a-carbon that is covalently…

A: Proteins are made up of amino acids and each amino acid has different functional group (R- group).…

Q: amino acids vary from each other in their a. amino groups b. side chains (R or variable groups)…

A: Introduction :- Amino acids are the building blocks of proteins and they are composed of three…

Q: When a protein is folded in aqueous solution, some residues are driven inside to form a “hydrophobic…

A: Introduction Proteins are the most abundant macromolecule present in our body. Proteins performs…

Q: Match the amino acid description with their 3-letter abbreviation…

A: Amino acids can be polar, non-polar, positively charged or negatively charged, depending on their…

Q: Protein folding a. is essential to make a functional protein and occurs spontaneously b. is…

A: ANSWER;- c. is a random process essential for the 3D shape of the protein

Q: In extracellular proteins the amino acid Cys can interact with another Cys to form a bond sometimes…

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: Which of the following amino acid pairs may form hydrogen bonds between eachother (select all that…

A: Amino acids are any organic compounds containing an amino group (–NH2) and a carboxyl group (–COOH),…

Q: The β-Sheet is formed mainly by   a. hydrophobic interaction b. hydrogen bonding between the…

A: Alpha-helix and beta-sheets are regular secondary structures that are mainly found in protein…

Q: Draw the two dipeptides formed from each pair of amino acids. a. tyrosine and lysine b. threonine…

A: Amino acids are the structural unit of proteins. Amino acids (same or different) join with one…

Q: Which of the following sets corresponds to polar charged amino acids? a. Ser, His, Thr b. Met, Ile,…

A: Amino acids are biomolecules that have an amino group and a carboxyl group attached to the same…

Q: Which of the following statements about this structure is TRUE? a. It contains a phosphoester bond…

A: Introduction The structure is an informational macromolecule consists of a ribose sugar to which…

Q: What is the molecule below?  A. Tetrahydrofolate   B. 5-adenosyl methionine   C. Pyridoxal…

A: Coenzymes are substances that enhance enzymatic activity by binding to the enzyme. coenzymes are the…

Q: NaCl (a salt) can disrupt protein structure. This is true because a protein containing the amino…

A: Glutamic acid is an amino acid that is used in the formation of proteins. It is converted to…

Q: Which of the following saccharides is INCORRECTLY described? *       A. D-mannose: Monosaccharide:…

A: Carbohydrates are macronutrients that the body requires for energy production. Carbohydrates provide…

Q: Which of the following is an example of protein denaturation? *       A. Amino acids fold into…

A: The proteins are folded into their three dimensional structure via four levels of organizations :…

Q: Which of the following is incorrect about the peptide Val-Leu-Ala-Ser-Gly? It has a net charge of…

A: H3+N-Val-Leu-Ala-Ser-Gly-COO- a) We have 1 positive charge at the N-terminal and one negative charge…

Q: amino acids can be polar neutral, polar folded protein in the aquEous cellular environment, is…

A: The four non-covalent interactions that stabilize the structure of a protein are: hydrophobic…

Q: The phosphodiester bonds that link adjacent nucleotides in both RNA and DNA: a. always link A with…

A: Introduction: Nucleic acids are large complex biomolecules that store hereditary information…

Q: Keratin is a type of found in the cytosol, which means its hydrophobic amino acids are Select one:…

A: Keratin is a type of protein that is also known as scleroprotein. This protein is present in hairs.…

Q: What is the primary driver of protein folding on a macro level?   a. Hydrogen bonding   b. Van der…

A: The primary driver of protein folding on a macro level is:d. Entropic forceProtein folding is…

Q: The protein structural level that could be least affected by hydrogen bond disruption is the A.…

A: Proteins are big, complex molecules that serve a variety of important tasks in the human body.…

Q: Which of the following sets corresponds to nonpolar amino acids? a. Met, Ile, Glu b. Ala, Leu, Trp…

A: Amino acids are α-amino carboxylic acids that are the basic building blocks of proteins. Amino acids…

Q: Denaturation of protein is a result of OA. cleavage of the peptide bond B. formation of H-bond O c.…

A: Proteins are made up of polypeptide chains, which are nothing but the sequence of amino acids…

Q: Which of the following might cause the denaturation of a protein? Select all that apply.     A.…

A: PROTEIN STRUCTURE:- Protein structure is a 3 D Structure which forms 4 structures: 1)PRIMARY…

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: A structural difference between uracil and cystosine is: A. At C-4 cytosine has an amino group,…

A: Nucleic acids are one of the most important organic compounds. A combination of a sugar molecule,…

Q: The amino sequence of a protein is: alanine, leucine, valine, threonine.  This information reveals…

A: The main structure is the most fundamental kind of protein structure. An easy, linear chain of amino…

Q: Which of the following is incorrect? Oa. None; all the other choices are correct O b. Disulfide…

A: Disulfide bonds are the bonds that are formed between two sulfhydryl groups. It is a covalent bond…

Q: Which of the amino acids does NOT have an aliphatic side chain?   a.   Lysine   b. Alanine…

A: R groups in aliphatics are nonpolar and hydrophobic. The hydrocarbon chain's hydrophobicity rises as…