Which of the following is not true about a-amino acids? have at least 2 pka values O negatively charged at pH= 1.0 O most contain one chiral center O can act as buffers

Q: Which is responsible for the stabilization of parallel polypeptide chains in a beta-pleated sheet…

A: Secondary structure refers to the local folded structures that occur inside a polypeptide as a…

Q: Which of the following lipids will have higher melting point?

A: Introduction  Lipids are a diverse group of biomolecules that are insoluble in water but soluble in…

Q: Show a(１３：1)Cis Fatty-acid that is △^10 and what it is called in Omega No man clay.tur. Compared to…

A: Fatty acids are carboxylic acids with a hydrocarbon chain ranging from 4 carbon to 36 carbons. The…

Q: In a solution with pH ~7 most of the amino acids are form zwitterions. Name the amino acids which…

A: Amino acids: a. Amino acids are the building block of proteins that contain a carboxylic acid group…

Q: Describe in detail why amino acids protonate and deprotonate as the pH of the solution changes. In…

A: Amino acids are solids of crystalline nature; they have very high melting points, in excess of 200o…

Q: Which of the following is a fatty acid with this notation, 16:0     Stearic acid     Myristic…

A: Fatty acids are important micromolecules which combine together to form lipids in plants, animals…

Q: Which of the following amino acids belaw is not likely to be found in nature? NH NH HS

A: Amino acids are monomer units of proteins. They are organic molecules with certain functional…

Q: How many of each od the following structural features are present in a molecule of glycocholic acid?…

A: Glycocholic acid is also known as cholylglycine and glycine cholate. It is a crystalline occurrence…

Q: At pH=2.2, which of the following is true СООН ÇO0 Ç00 CO0 H,N-CH H3N-CH H,N-CH H2N-CH CH2 pK, CH2…

A: The given amino acid is glutamic acid. Glutamic acid is an acidic or negatively charged amino acid.…

Q: When drawing the structure of an amino acid, which of the following statements is true? The amino…

A: Amino acids are biomolecules in which an alpha (α) carbon is bonded to 4  groups. These 4 groups are…

Q: HN 1. 2. 3. 4. 5. NH CH₂ EB HẠN–ệ—C H 8 Choose A if the statement is CORRECT B if the statement is…

A:

Q: first amino acid is R second amino acid is L Draw your dipeptide at pH 7.4

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which amino acid will stop closest to the positive terminal in an anode?

A: Amino acids have a tendency to exist as Zwitter ions. A zwitter ion carries both positive and…

Q: Which of the following explains why methyl anion has a pyramidal geometry while methyl cation is…

A: The methane (CH4) is the lowest possible alkane that can be formed, where a carbon atom is attached…

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: Is this the correct answer of R and T in the blanks or are they switched?

A: Proteins are composed of twenty standard amino acids attached together via peptide bonds. These…

Q: In the structure shown, which arrow is pointing to a peptide bond? OH LOH NH2 H OH HO-P=0 H. `A ÓH…

A: Peptide bond: It is a covalent bond used to join two amino acids to form a peptide chain. Generally,…

Q: Which of the following is incorrect about the peptide Arg-Asp-Cys-Tyr-Gln-Arg-Glu? O a. Its…

A: The peptide given is represented in single letter codes as: RDCYQRE Its structure is:

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: are all 20 amino acids insoluble in water? truee or false

A: There are 20 different amino acids having different characteristics and properties and based on them…

Q: a) Which pH (1, 7 or 10) would produce the following ionization states for lysine?Th pK of the…

A: The pKa of the ionizable groups of amino acids determine the net charge on the amino acid at a…

Q: At pH=2.2, which of the following is true COOH COO- Ç00 ÇO0* H3N-CH H,N-CH H&N-CH H2N-CH CH2 CH2 pK,…

A: The given amino acid is glutamic acid. Glutamic acid contains three ionizable groups in the form of…

Q: determine which of the standard amino acids have a side chain with the following characteristics.…

A: Amino acids are the building block of the proteins which contains a carboxylic acid group and an…

Q: Draw the structure of the peptide KNYPEH  showing every bond and atom (including the hydrogens) in…

A: Peptide- "KNYPEH"K- LysineN- AspargineY- TyrosineP- ProlineE- GlutamineH- Histidine

Q: The structure below shows a tripeptide at physiological pH with the protonatable groups labeled with…

A: Peptides are composed of amino acids. Some amino acids have ionizable side chains while others do…

Q: Which of the following amino acids would be a good choice to be “Amino Acid XX”?  Explain your…

A: Amino acids are organic molecules with carboxyl and amino functional groups attached to an alpha…

Q: None

A: Let's analyze each statement to determine which one is true.A tertiary (3º) amine has one H-bond…

Q: Protein solubility

A: here they are talking about protein solubility. Protein solubility is a thermodynamic property…

Q: Tryphtophan is an essential amino acid that is used in the biosynthesis of proteins. Its molecular…

A: Amino acids are biomolecules that have a hydrogen atom, a carboxyl group, an amino group and a…

Q: The chemical structures of the two opposing ends in any polypeptic because: O a. the structures of…

A: A polypeptide is a string of covalently bonded amino acids that has not been folded into a…

Q: What tertiary interaction would be expected between the following amino acids HN- OH CH- OH CH-CH)…

A: Amino acids are the building blocks for proteins or peptides, they are joined by the peptide…

Q: simple proteins that generally yield proline upon hydrolysis. these proteins are solubler in 70-80%…

A: Proteins are the macromolecules composed of amino acids. The amino acids are bonded to each other…

Q: Which of the following is not true about cholesterol?

A: Cholesterol is a type of lipid that occurs in the cell membranes. It is almost found in all cells of…

Q: H₂C-O HC-O m F SMAAA H₂C-O m Saturated fat The diagram above is most specifically an example of a:…

A: Triglycerides or triacylglycerides or simple fat. are fatty acid esters of glycerols. In…

Q: In a solution at physiological pH, the side chain of a polar basic amino acid bears a charge.…

A: An amino group and an acid group are present in organic molecules called amino acids. Amino…

Q: What products are formed when below peptide is treated with chymotrypsin? Phe–Tyr–Gly–Cys–Arg–Ser

A: Three different types of bonds occur in the formation of polymeric biomolecules – peptide,…

Q: The carboxylic acid functional group (R-COOH) in an amino acid has a pka of about 5. Under which of…

A: The amino acid with a side chain carboxylic group is called an acidic amino acid. Examples of acidic…

Q: Which of the following fusion of molecules establishes the backbone of an amino acid? 1. An alpha…

A: Amino Acids are monomers of long protein chains. Two amino acids are connected by the peptide bonds…

Q: A protein has an asp glu/arg lys ratio of 3. Explain how would the overall charge on this molecule…

A: pKa is the negative log of acidic ion concentration and used to denote the acidity or basicity of…

Q: A protein has an asp glu/arg lys ratio of 3.  What would the overall charge on this molecule likely…

A: Amino acids are the monomers of the peptide or proteins having different side chains attached to the…

Q: Which of the following amino acids has more than one chiral center? Thr lle Leu both A and B both B…

A: A chiral center is a carbon atom covalently bonded to 4 different groups.

Q: What is the ratio of [A-]/[HA] in a solution with pH = 11.5? NH3 sh NH₂ sh + H+

A: Lysine is a basic amino acid with an amino group in its side chain. The pKa value of the lysine side…

Q: Which of the following is true about the amino acid A? Click all that apply. Is considered…

A: Alanine is hydrophobic molecule. It is α-amino acid that is used in the biosynthesis of proteins. It…