03 amino acids and protein
II- Classification according to polarity of side chain (R): A- Polar amino acids: Polar side chains contain groups that are either charged at physiological.
Proteins: Polymers of Amino Acids 20 different amino acids: many combinations Proteins are made in the RIBOSOME.
B- Classification according to polarity of side chain (R): 1- Polar amino acids: in which R contains polar hydrophilic group so can forms hydrogen bond.
II- Classification according to polarity of side chain (R):
