When we say proteins have primary, secondary, tertiary and quaternary structures, are we referring to the protein? i.e does a single protein show all these structures?
Or is it that some proteins exhibit primary structures while somesecondary….and so on?

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Solution

Yes, a single protein molecule passes through all these structures. When a protein molecule is formed, it is a linear chain of polypeptides, called as the primary structure. Subsequent conformational changes gives them the secondary, tertiary and quarternary structures.

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Similar questions

Each polypeptide in a protein has amino acids linked with each other in a specific sequence. This sequence of amino acids is said to be .............. .
(a) primary structure of proteins (b) secondary structure of proteins
(c) tertiary structure of proteins (d) quaternary structure of proteins

Schematically represent primary, secondary and tertiary structures of a hypothetical polymer say for example a protein.

Q. The genetic information in DNA comprises a code for the primary structure of a protein. What determines the important arrangements of secondary, tertiary, and quaternary structure for the protein?

Q. What are the molecular shapes and kinds of chemical bonds that characterize the (a) primary (b) secondary, (c) tertiary and (d) quaternary structures of a protein?

Q. Which of the statements about 'Denaturation' given below are correct?
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(i) Denaturation of proteins causes loss of secondary and tertiary structures of the protein.
(ii) Denaturation leads to the conversion of double strand of DNA into single strand.
(iii) Denaturation affects primary structure which gets destroyed.

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When we say proteins have primary, secondary, tertiary and quaternary structures, are we referring to the protein? i.e does a single protein show all these structures? Or is it that some proteins exhibit primary structures while somesecondary….and so on?

Yes, a single protein molecule passes through all these structures. When a protein molecule is formed, it is a linear chain of polypeptides, called as the primary structure. Subsequent conformational changes gives them the secondary, tertiary and quarternary structures.

When we say proteins have primary, secondary, tertiary and quaternary structures, are we referring to the protein? i.e does a single protein show all these structures?
Or is it that some proteins exhibit primary structures while somesecondary….and so on?