Proteins | Classification | Structure is one of the most important topic for academic and competitive preparations like IIT-JEE and NEET.
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Proteins are the most abundant bio-molecules of the living system. Chief sources of proteins are milk, cheese, pulses, peanuts, fish, meat, etc. They are found in every part of our body and form the fundamental basis of the structure and functions of life. They are also required for the growth and maintenance of the body.
The word protein is derived from the Greek word, “proteios” which means primary or of prime importance. All proteins are polymers of α-amino acids.
Amino acids are compounds containing both amino (–NH2) and carboxyl (–COOH) functional groups in the same molecule. Depending upon the relative position of the amino group with respect to the carboxyl group, the amino acids are classified as α, β, γ, δ and so on amino acids. However, proteins are polymers of α-amino acids and therefore, they give only α-amino acids on hydrolysis.
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Important Reference Books
(1) Physics- (1) Concept of Physics by H.C. Verma
(2) Modern’s abc of Objective Physics
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(3) Mathematics- (1) Mathematics for Class XI and XII by R D Sharma
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(4) Biology- (1) Biology by Trueman
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