Ans. Secondary . Explaination: Secondary structure of proteins refers to the sha

Question

Ans. Secondary .

Explaination:

Secondary structure of proteins refers to the shape in which a long chain poly peptide can exist.There are two types 1) alpha helix and

2) beta pleated.

The alpha helix is a polypeptide chain that is coiled in a spring-like structure, held by intra molecular hydrogen bonds. A helix can be left-handed (beta) or right-handed where the alpha helix is always right-handed.

Beta pleated sheets are made of beta strands connected laterally by two or more hydrogen bonds forming a backbone. The chains are stretched out to nearly maximum extension and laid side by side. These are also held together by hydrogen bonds, but the bonds in the beta sheet are inter molecular, occurring outside the chain—connecting the two (or more) chains.

Explanation / Answer

21) Alpha helices and beta pleated sheets make up which of the following structures of proteins? Primary secondary Tertiary Quaternary All of the above Previous 14 1 15 1 16 1 1Z1 18 1 19 1 201 211221 23 5 6 7 8 0 ALT

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