Which of the following is TRUE? Select one: a. The disulfide bridges formed by oxidation of the sulfhydryl groups on cysteine stabilizes protein tertiary structure. b. The disulfide bridges formed by oxidation of the sulfhydryl groups on cysteine destabilizes protein tertiary structure. c. The disulfide bridges formed by reduction of the sulfhydryl groups on cysteine stabilizes protein tertiary structure. d. The disulfide bridges formed by reduction of the sulfhydryl groups on cysteine destabilizes protein tertiary structure. Clear my choice

Q: Provide the following information about L-dopa. a. Label all sp hybridized C atoms. b. Label all H…

A: L-DOPA is chemically known as L-3,4-dihydroxyphenylalanine. L-DOPA is normal part of biology in…

Q: Some characteristics of three proteins are listed in the table below: Protein Molecular Weight…

A: Chromatography is a separation technique that separates a mixture of analytes based on their…

Q: For each amino acid: [1] draw the L enantiomer in a Fischer projection; [2] classify the amino acid…

A: Introduction: Amino acids are organic compounds that contain amino and carboxyl functional groups,…

Q: Desferal (Desferrioxamine B) is a drug given to thalassaemic patients who are being treated by blood…

A: Desferal (Desferrioxamine B)- It is a drug given to thalassaemic patients who are being treated by…

Q: a. Draw the peptide chain (indicate if it is solid or hatched wedges) for the following:…

A: Peptides are composed of amino acids attached to each other via peptide bonds. The peptide bonds are…

Q: Amylopectin has which of the following structural features? a. only α(1,4) glycosidic linkages b.…

A: Amylose is an un-branched chain polymer of D-glucose units, less soluble in water, and is a great…

Q: (a) Draw an example of a triglyceride molecule and name the functional group that links the glycerol…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: For the following peptide: group 3 O. C-NH, CH, Н 4 2 group 1 HO NH, 3 CH2 1 group 4 N. N-H group 2…

A: The given separation method has to be isoelectric Focusing or IEF as it is a method of separating…

Q: Which one of the following statements comparing alpha keratin and silk fibroin is a true statement?…

A: Introduction: Alpha-keratins are proteins that form tough fibers and are found in hair, nails, and…

Q: Which of the following is incorrect? a. A heterodimer is composed by two identical polypeptide…

A: a) The heterodimer is composed of two different subunits, they are not made up of two identical…

Q: You analyze a protein of 100 kDa using SDS-PAGE in the absence and presence of �-mercaptoethanol…

A: Multisubunit proteins are composed of more than 1 polypeptide chain.SDS (sodium dodecyl sulfate)…

Q: Which of the following statements are correct about the native state of a protein (select all that…

A: Protein is a complex biopolymer coded by genetic codons in mRNA. They are involved in various types…

Q: Why is alpha (a) the predominant anomeric form of mannose? A. The alpha-anomer is more unstable…

A: Mannose is a monosaccharide and it is also called a polyhydroxy aldehyde. It means mannose is an…

Q: Polysaccharides may gel through a variety of different mechanisms. Which of these statements is…

A: Carbohydrates are divided into 3 classes monosaccharides, disaccharides, and polysaccharides.…

Q: c) If Jane Chemist wants Cysteine to move down the middle of the paper during electrophoresis, what…

A: There are four types of biological macromolecules: proteins, nucleic acid, lipids and…

Q: Draw the following: A. a phosphatidylcholine with two oleic acid as the fatty acids B. a…

A: Lipids are structurally diverse biomolecules that have two things in common: low solubility in water…

Q: . Which amino acid has a polar side chain? . Which amino acid is more soluble in water? B . Select…

A: The building blocks of life are the cells. These cells are the structural and the functional units…

Q: Assume you have a long polypeptide chain of Ser-Asp dipeptides linked end to end.  Explain the…

A: Serine is described as an amino acid that is majorly used in the process of biosynthesis of…

Q: Draw the structure of each of the following compounds: a. a polysaccharide formed by joining…

A: Polysaccharides are formed from joining monomers or monosaccharides via glycosidic linkages. The…

Q: The structures of the amino acids lysine and aspartic acid are shown: H CH₂ OH НО NH, Lysine…

A: The goal is to explain how the structure of amino acids affects their function, notably the…

Q: 2) What is glycoside ? In neutral and basic solutions, glycosides do not show mutarotation. However,…

A: Carbohydrates are simple sugars that consist of carbon, hydrogen, and oxygen atoms in their…

Q: Disulfide bridges can form in proteins that are in an oxidizing environment. They form between what…

A: The structure of the protein is important for its function. Protein's structure is stabilized by…

Q: if i have protein with 110kda and its cysteine joining with disulfide bond . and one cysteine acids…

A: A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or…

Q: b. CH CH2 | H;Č CH3 - Polypeptide backbone H3C CH3 ! CH C=OH -CH2+S-S CH2– а. CH2…

A: The structural organization of protein was classified into four different levels and they are…

Q: What positive impact can negatively charged amino acid in a protein have in the body? Include an…

A: Answers for the following question are :

Q: Mr standards without with (kDa) 2-МЕ 2-МЕ 200 100 90 75 50 25 20 15 | | |I| | |||

A: Proteins are polypeptide molecules made up of amino acids. Proteins are synthesized through the…

Q: A portion of a polypeptide chain contains the following sequence of amino acids: (-Met, -Leu, -Ala,…

A: Proteins are polymers that are composed of individual monomers known as amino acids. Each amino acid…

Q: Researchers investigating the protein composition in mice have identified a new protein and found…

A: Protein structure  The structure of proteins are made by condensation of amino acids through the…

Q: When the amino acid sequence of Hb and Mb is compared, some of them are found to be the same…

A: Hemoglobin and myoglobin are oxygen binding proteins. Hemoglobin helps to carry oxygen from lungs to…

Q: Which of these amino acids is a basic amino acid? (Select all that apply, if necessary.) A. B. C. E.…

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

Q: a. What is isoelectric point? (Round your answer to two decimal places, for example: 0.13 or 1.45 or…

A: The isoelectric point (pI) is the pH at which net electrical charge is zero for a molecule. It is…

Q: rmined by these amino acids? Exp

A: Two sulfur-containing amino acids are 1. Cysteine and Methionine    SH  functional group is called…

Q: 1. What is the isoelectric point (pI) of lysine which has pKa values of 2.1 for the α carboxyl…

A: Proteins are large molecules made up of amino acid residues linked via a peptide bond. Amino Acids…

Q: Cardiolipin is a membrane lipid found in bacteria and it is a major component of the inner membranes…

A: Cardiolipin (CL) is a complex phospholipid which is exclusively located in mitochondria. This…

Q: Calculate the isoelectric point for each amino acid.a. asparagine: pKa (COOH) = 2.02; pKa (α-NH3+) =…

A: The isoelectric point (pI) of an amino acid is defined as the pH of the amino acid at which there is…

Q: What does this statement mean: "Upon folding of a protein many main chain amides replace their…

A: Polypeptide chains are composed of amino acids bonded to each other via peptide bonds. Peptide bonds…

Q: 4) For various amino acid pairs (for example: F to A, E to R, D to N, V to L, S to W), ask yourself:…

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

Q: The structure of the dipeptide Gly-Asn is given by The structures of the amino acids Gly and Asn are…

A: Glycine (Gly - 3 letter code ) and Asparagine (Asn) are amino acids.  Amino acids are the building…

Q: 4. Below is a polypeptide with an unknown number of amino acids. On the diagram below: a. Circle…

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

Q: Φ and ψ in the Ramachandran plot (below) are: a) Rotational angles around the bond between the…

A:

Q: Define the following terms: a. β-hairpin b. supersecondary structure c. fibrous protein d. globular…

A: Note- Since you have posted a question with multiple subparts, we will solve the first three…

Q: Which of these amino acids is a polar, uncharged amino acid? (Select all that apply, if necessary.)…

A: Amino acids are defined as the organic compounds that have amino (-NH3) and carboxylate (-COO- )…

Q: 1. Shown below is the chemical structure for a 5-amino acid pentapeptide. Use this diagram to answer…

A: Note : Hi ! Thank you for the question. We are authorized to answer one question at a time. Since…

Q: A tetrameric protein dissociates into dimers when the detergent sodium dodecyl sulfate (SDS) is…

A: Proteins are polymers of amino acids linked by peptide bonds. Proteins can be single chain or more…

Q: Melibiose is a disaccharide found in artichokes. It consists of galactose and glucose linked by an…

A: a) Melibiose is a disaccharide which is formed by an α- 1,6 - glycosidic bond between glucose and…

Q: Amino acid sequence in a protein that can form N-glycosylation is called a glycosylation sequon.…

A: Glycosylation is the covalent addition of carbohydrates to proteins. The proteins to which specific…