If the polypeptide chain DFRYHWSA were in an alpha helix, then the alpha amino group of amino acid S would be in a hydrogen bond with the C-0 of Please write letter of amino acid as answer.

Q: Classify each peptide chain as part of a parallel β sheet, part of an antiparallel β sheet, either…

A: Beta-sheets are one of the most common secondary structures seen within proteins. Several…

Q: Consider the following tetrapeptide, written in a sequence according to normal convention, from left…

A: The given tetrapeptide has an acidic residue at the first position, the second residue is cysteine,…

Q: Draw the amino acids serine and threomine bonded together with a petide bond.

A: Amino acid

Q: Write the structure formula, three-letter and one-letter abbreviation for each essential amino acid…

A: Amino acids contain amino group and carboxyl group along with R side chain. The R side chain defines…

Q: Alanine has a strong tendency to form α-helix. A biochemist synthesized a polypeptide consisting of…

A:

Q: Proline is sometimes found as one of the first four residues of an alpha helix. Proline is less…

A: Proline is one of the 20 standard amino acids which has an amino group (NH2), a carboxyl group…

Q: The pi-helix is a rare secondary structural element in proteins that resembles an alpha helix but…

A: Helices are the main secondary structural elements (SSEs) present in protein structures and are…

Q: Draw a ribbon structure for the following polypeptide: (There is more than one right answer to this…

A: The polypeptide in question is likely to form intrastrand antiparallel beta-sheet. Beta-sheets are…

Q: Draw out the structural formula of the oligopeptide, with the first amino acid as the N-terminus

A: Amine and carboxylic acid groups in amino acids are joined together, and forms chains of amino acids…

Q: w the polypeptide T-R-I-P at pH of 7. Label each residue with the 3-letter code, el the N- and…

A: In a polypeptide chain N terminus is formed by amino group. C terminus  Is formed by carboxyl group

Q: Helices can be described by the notation nm,where n is the number of residues per helical turn and m…

A: Proteins are a type of macromolecule that have a variety of roles in biological processes. It is…

Q: What does the "alpha" indicate in "α-helix"? It is a Greek helix. It's position lies above the…

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

Q: Please draw the titration curve Arginine (y-axis: pH, x-axis: moles of OH-). Label the graph with…

A: Arginine is a basic amino acid with a guanidino group in its side chain. Arginine has three…

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: Each amino acid in a run of several amino acid residues of a polypeptide chain have phi values of…

A: Ramachandran plot gives the statistical distribution of the combinations of the dihedral angles ϕ…

Q: Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R,…

A: Amino acids are the structural units of proteins that are linked together by peptide bonds. There…

Q: You identify a section of 2 beta strands in a protein crystal structure. When you identify the…

A: The linear arrangement of amino acids in beta strands, an usual secondary structure in proteins,…

Q: Draw a diagram to illustrate the locations of the omega (w), phi (p), and psi (4) rotational bond…

A: Omega (ω), phi (ϕ), and psi (ψ) angles are used to illustrate how atoms rotate along the polypeptide…

Q: Draw a ceramide with a (16:1n-7) fatty acid attached

A: Fats are made up of fatty acid chains (acting as tails of fats) attached to either glycerol or…

Q: There are a total of six different amino acid sequences for a tripeptide containing one molecule…

A: Any peptide that is obtained by a set of three amino acids joined together is known as a tripeptide.…

Q: why do you think this is? In your explanation, you should describe the specific molecular…

A: 1. Proline is rarely found in beta sheets or alpha helices this is because proline is totally…

Q: To visualize the spatial arrangement of amino acid residues in an a-helix, it is helpful to imagine…

A: Alpha helix is a secondary structure of protein. The alpha-helix can be right-handed or left-handed.…

Q: Which of the following statement is not true?     In a secondary structure the consecutive…

A: The secondary structure of a protein refers to the spatial arrangement of the main chain atoms of…

Q: 2.2 9.2 Serine Threonine 2.1 9.1 1.9 10.7 8.4 Cysteine Methionine 2.1 9.3 8.7 Asparagine Glutamine…

A: In the polypeptide chain, the amino acids are joined by peptide bonds. The amino acid side chain is…

Q: Consider beta-sheet comprised of twelve amino acid residues (two strands of six residues each). How…

A: Proteins are the macro molecules that show great diversity in their structure. They show four levels…

Q: A tetradecapeptide (14 amino acid residues) gives the following peptide fragments on partial…

A: A peptide is sequence of amino acids in which different amino acids are joined through peptide bond…

Q: Why is methionine (Met) not found on the inside of a protein even though it is hydrophobic?

A: The amino acid methionine is considered as one of the essential amino acids. It is a hydrophobic…

Q: The primary amino acid sequence of a stretch of polypeptide is Asp-Glu-Pro-Lys-His-Arg. Would you…

A: Amino acids are biomolecules when combined with a peptide bond forms proteins. Proteins are…

Q: In the peptide shown below, a covalent bond that could rotate to form secondary structure is…

A: There are two types of secondary structures are which are found in protein: alpha helix and beta…

Q: Within a naturally-occurring polypeptide, under neutral pH conditions (pH = 7.0), which of the…

A: Proteins are also called polypeptides because the monomer that forms the proteins commonly called…

Q: Draw the structural formula of the oligopeptide if the amino acids are arginine, glutamine, glycine,…

A: Proteins are nitrogenous compounds and are macrobiomolecules. They are formed of various amino acids…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.