Which of the following characterize -helix regions of proteins? (A) They all have the same primary structure. (B) They are formed principally by hydrogen bonds between a carbonyl oxygen atom in one peptide bond and the amide hydrogen from a different peptide bond. (C) They are formed principally by hydrogen bonds between a carbonyl atom in one peptide bond and the hydrogen atoms on the side chain of another amino acid. (D) They are formed by hydrogen bonding between two adjacent amino acids in the primary sequence. (E) They require a high content of proline and glycine

Q: Match the following levels of protein structure with their description two or more polypeptide…

A: The levels of protein structure and their descriptions can be matchedas follows:    1.Quaternary:…

Q: What are the four levels of protein structure, and what is the distin­guishing feature of each?

A: The biomolecule formed by repeating units of amino acids is called a protein. Protein is the polymer…

Q: In most cases the peptide bond is in the trans conformation. What statement below best explains this…

A: In proteins the adjacent amino acids are held together via peptide bonds . A peptide bond is an…

Q: Which of the following is primarily responsible for stabilizing the a-helix, a type of secondary…

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

Q: (a) Are all proteins polymers? What is the basic unit of protein? Explain the formation of…

A:

Q: A biochemist is designing a peptide that will form the most stable α-helix possible. He needs to…

A: The helix which has to be made must have a polar and non-polar surface and it should be highly…

Q: What structure(s) contain(s) ribose?

A: Introduction: A pentose sugar present in ribonucleic acid is ribose. Its chemical formula is…

Q: The nucleic acid bases: A)absorb ultraviolet (260 nm) light. B)have all of these described…

A: Introduction: Nucleic acids are one of the major macromolecules present mainly in the nucleus of the…

Q: At what level of protein structure do multiple polypeptide chains interact?

A: A polypeptide is a single linear form of chain with many amino acids (any length), attached together…

Q: The structural level of a protein least affected by a disruption inhydrogen bonding is the(A)…

A: The proteins are considered as macromolecules that possess structure that are primary, secondary,…

Q: The amino acid that lacks a backbone NH for bond formation to backbone CO group (due to the presence…

A: Amino acids commonly called alpha-amino acids because of a primary amino group(-NH2 ) and a…

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: The substitution of one amino acid for another in a polypeptide chain can affect the __________ of…

A: Proteins are needed for growth and maintenance and they also provide structural support to the…

Q: For each of the following amino acids: 1) describe what the important functional group of the amino…

A: Proteins are made up of amino acids. Each amino acid has a distinct side chain, also referred to as…

Q: Protein structure: a). Name the four levels of protein structure, b). Describe the structural…

A: A)There are four levels of protein structures as follows: PRIMARY   -SECONDARY   -TERTIARY…

Q: Which of the following amino acids has a hydrophobic R-group and would tend to be found on the…

A: Introduction:  Amino acids are molecules that contain an amine group, carboxylic acid group, and a…

Q: (a). Name the TWO functional groups that are characteristic of all amino acids. (2) (b). Assume that…

A: The amino acids are monomers of proteins. Individual  amino acids are zwitterionic in nature which…

Q: What forces stabilize the quaternary structure of a protein?

A: The spatial arrangement of several tertiary structures forms the quaternary structure. Subunits,…

Q: Proteins are found to have two different types of secondary structures viz. a-helix and B-pleated…

A: The correct answer is (i) Hydrogen bonds. The alpha-helix structure of a protein is a type of…

Q: Find a protein of your choice, choose a part of it (containing at least 30 amino acid residues),…

A: Proteins are the working machinery of the cell. They are made up of amino acids that are linked to…

Q: What is the sequence of atoms along the “backbone” of a protein?

A: A Peptide Bond is a  amide type of covalent chemical bond which links two amino acids to form a…

Q: Bradykinin, a peptide that helps to regulate blood pressure, has the primary structure…

A: Bradykinin is a peptide found in the body, which helps control inflammation.

Q: Consider the sequences (i-iv) that represent sections of a protein. i) -AEEAAAAMAAAAMAAY ii)…

A: Secondary structure is the formation of regular patterns through interaction between nearby…

Q: is Tertiary protein structure come from secondary structure？How are they related？（do we need to…

A: Proteins are biomolecules that are made up of amino acids connected to each other via peptide bonds…

Q: Match the following statements about protein structure with the proper levels of organization. (i)…

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

Q: What common feature of α helices and β sheets makes them universal building blocks for proteins?

A: There are four types of protein structures- primary, secondary, tertiary and quaternary protein…

Q: What are the four levels of protein structure, and what is the distinguishing feature of each?

A: The four levels of protein structure are separated from one another by the level of complexity in…

Q: What is the importance of each protein structure (Primary, Secondary, Tertiary, and Quaternary…

A: Amino acids are defined as the organic monomer molecules where they act as the functional building…

Q: 7. Native conformation of proteins may result from: a) hydrophobic interactions b) H-bonds c) ionic…

A: Proteins - Proteins are the macronutrients which are used for the building up of the muscles in the…

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: In Protein structure: a). Write the name of the four levels of protein structure,

A: Answer of the question is below,

Q: rotein structure and what type of bond is primarily responsible for each level?

A: Proteins are the ultimate result of a coding procedure that begins with cellular desoxyribonucleic…

Q: Explain 3 benefits of proteins forming higher oligomeric states.

A: Protein is a macronutrient needed to build muscle mass. It is found in animal products, even though…

Q: What are proteins? What type of bonds is responsible for the formation of proteins? Provide an…

A: Proteins are known to play an important role in growth and development of the body and are…

Q: What are the four different levels of a protein structure?

A: Proteins are the building blocks of life. They are the most common molecules found in all cells.…

Q: Which of the following statements about alpha-helix and beta-sheet structure are true? More than one…

A: A protein's function depends on its structure. There are four levels of protein structure: primary,…

Q: (1) (2) (3) Which of the following residues would be most likely to make contact with the aqueous…

A: Proteins are intricate macromolecules made up of a large number of amino acids that are connected by…

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.