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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Given the structures of the amino acids in Fig. 21.2, choose two amino acids that you would expect to have hydrophobic side chains and two amino acids that you would expect to have hydrophilic side chains, and explain your choices in terms of the structure of the side chains involved.

Interpretation Introduction

Interpretation:

Interpret and choose two amino acids expected to have hydrophobic side chain and two amino acid with hydrophillic side chain.

Concept Introduction:

Protein is a long chain of polypeptide in which number of amino acids are linked to each other to produce a structure known as protein.

Each amino acid consist of carboxyl end and amino group which are joined through peptide linkage to produce dipeptide, tripeptide and polypeptide according to number of amino acids linked to each other.

Polarity of chain depends on the difference in electronegativity of the atom such as with the electronegativity, the polarity can be observed.

Explanation

Alanine and glycine having hydrophobic side chain as they are not carrying any polar groups on side chain as follows:

Alanine

Alanine not having any side chain and thus not having polarity in side chain.

Glycine

Glycine having both the hydrogen present on central carbon due to which no charge separation takes place to acquire polarity...

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