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Explain why polar and ionic R groups are hydrophilic.

User Guy Segev
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Step-by-step explanation:

They are hydrophobic. About 5 amino acids have polar side chains, R-groups which do not ionize or become positively or negatively charged. These R-groups are neither strongly hydrophilic nor hydrophobic. Atoms in long molecules, such as polypeptides, are not rigidly fixed in space or position

User Cagatayodabasi
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