BIOLOGY
STRUCTURE OF PROTEINS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
primary structure
|
|
secondary structure
|
|
tertiary structure
|
|
quaternary structure
|
Detailed explanation-1: -Secondary structure is generated by formation of hydrogen bonds between atoms in the polypeptide backbone, which folds the chains into either alpha helices or beta-sheets. Tertiary structure is formed by the folding of the secondary structure sheets or helices into one another.
Detailed explanation-2: -Secondary structure Both structures are held in shape by hydrogen bonds, which form between the carbonyl O of one amino acid and the amino H of another.
Detailed explanation-3: -Secondary structure refers to regular, recurring arrangements in space of adjacent amino acid residues in a polypeptide chain. It is maintained by hydrogen bonds between amide hydrogens and carbonyl oxygens of the peptide backbone. The major secondary structures are -helices and -structures.
Detailed explanation-4: -Secondary structure refers to the shape of a folding protein due exclusively to hydrogen bonding between its backbone amide and carbonyl groups. Secondary structure does not include bonding between the R-groups of amino acids, hydrophobic interactions, or other interactions associated with tertiary structure.