Question

Name amino acids which have the characteristicsof being able to repelwater

Answer 1

hey!!
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Each of these 5 amino acids has 3 ionizable groups ⇒ 3 pKs. pI = average of ... His has 3 ionizing groups, alpha-carboxylic acid (pK 1.8 ), .... polar - rotate out to H bond with water.

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Answer 2

Amino acids are grouped according to what their side chains are like.

The nine amino acids that have hydrophobic side chains are

glycine (Gly),

alanine (Ala)

, valine (Val),

leucine (Leu),

isoleucine (Ile),

proline (Pro),

phenylalanine (Phe),

methionine (Met),

and tryptophan (Trp).

. These side chains are composed mostly of carbon and hydrogen, have very small dipole moments,