The type of bonding that maintains the secondary structure in a protein is the
A) Hydrogen bonds between the carbonyl and amino groups of the backbone
B) Covalent bond between the carbonyl and amino groups of the amino acids
C) Hydrogen bonds between two amino acids
D) Disulfide bonds that hold two polypeptide chains together
E) Hydrogen bonds between two amino groups
Option A is the correct one
A) Hydrogen bonds between the carbonyl and amino groups of the backbone
secondary structure is alpha helical structure coilled back bone structure of amino acids
and is stabilized by hydrogen bond of an amino group of one amino acid in chain with carbonyl group of other amino acid
other answers are wrong
B) Covalent bond between the carbonyl and amino groups of the amino acids
the are responsible for primary liner structure of chain of amino acids
C) Hydrogen bonds between two amino acids
amino acids are no separated in secondary structure the are linked in polypeptide chain
so more correct answer is A
D) Disulfide bonds that hold two polypeptide chains together
it is for tirtiary and quaternary structures of protein not for secondary
E) Hydrogen bonds between two amino groups
when amino groups are in chain they do not show hydrogen bonds
The type of bonding that maintains the secondary structure in a protein is the
pls answer 6 and 7 6. Secondary structure (turn): The image below is of a polypeptide in secondary (20) structure level of protein folding. Specifically it is of a turn. Turns vary in length. The shorter the turn the more drastic the angle changes. The longer the turn, the more gradual the angles needed. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? Is this bond/interaction permanent or transient? d. What parts...
25) What maintains the secondary structure of a protein? a) hydrophobic interactions b) hydrogen bonds between the R groups c) peptide bonds d) disulfide bonds e) hydrogen bonds between the amino group of one peptide bond and the carboxyl group of another peptide bond
Distinguish between the different levels of protein structure, including primary, secondary, tertiary, and quaternary Question Is the following statement true? If not, explain why not: Since the secondary structure of a protein results from hydrogen bonding between components shared by all amino acids (a hydrogen on an amide N on one amino acid interacts with an oxygen on the carbonyl of another amino acid), the secondary structure does not depend on the specific amino acid groups (the R-groups) in the amino acid chain. Select...
26. Which of the following classification does not match the amino acid side chain A) Contains an basic group/ lysine B) It is polar C) Forms disulfide bond/ cysteine D) Forms hydrogen bonds with neighbors/ alanine serine 27. All amino acids found in proteins are L-amino acids EXCEPT the achiral. A) glutamate B) Lysine C) glyeine D) Alamine 28. The plH at which the positive and negative charges of an amino acid balance each ofher is called the A) isotonic...
The type of bond that is most important in maintaining secondary structure of a protein is disulfide bridges hydrogen bonding between R groups hydrogen bonding within the backbone salt bridges hydrophobic interactions metal ion coordination QUESTION 2 A glycerophospholipid with the phosphate ester group bonded to ethanolamine would be classified as a cephalin lecithin sphingomyelin cerebroside ganglioside
In proteins, the hydrogen bonding responsible for the secondary structure of a protein generally takes place between backbone carbonyl oxygen atoms and amide hydrogen atoms. In contrast, the hydrogen bonding that contributes to tertiary structure generally occurs between amino acid side chains.Two serine residues are shown below, with possible hydrogen bonds shown in green. Which bonds depict the hydrogen bonding that occurs between serine residues and contributes to tertiary structure?
2) At a pH greater than that of its isoelectric point, the structure of glycine is a) H-CH-COOH b) H-CH-C00- c) H-CH-CO e) H-CH-COO COOH b) H-CH-C00- c) H-CH-COOH d) H-CH-COO NH2 NH2 NH2 NH3 NH 3) Which of the following structures can be destroyed by the dena structures can be destroyed by the denaturation of a protein? a) Only primary and tertiary structures of a protein. b) Only secondary, tertiary y secondary, tertiary, and quaternary structures of a protein....
please answer 8. Quaternary structure: The image below is of a polypeptide in quaternary (4°) structure level of protein folding. The image to the left is of hemoglobin. It is composed of four separate polypeptide chains indicated by the color differences. The image on the right indicates the backbone items as a ribbon (or line), while the side chains are chemically drawn. a. Name the specific bond/interaction indicated by the: i. Letter A ii. Letter B iii. Letter C iv....
24. The _______ of amino acids in a protein is referred to as its primary structure. A) twisting B) sequencing C) folding D) none of these 25. The structure of a protein is most important because the _______ of the amino acids determines its overall shape, function and properties. A) primary, twisting B) primary, sequencing C) secondary, twisting D) secondary, folding E) none of these 26. The secondary structure of a protein is due to_______ between amino acid residues. A) hydrophobic interactions B) hydrogen bonding...
please answer 5. Secondary structure (B-sheet): The image below is of a polypeptide in secondary (2) structure level of protein folding. Specifically it is of a B-sheet. The image on the left is of an anti-parallel sheet, and the right of a parallel sheet. a. Name the specific bond/interaction indicated by the dotted lines. b. Is this bond/interaction covalent or non-covalent? c. Is this bond/interaction permanent or transient? d. What parts of the amino acid (backbone or side chain) are...