Amino acids can be classified as A. Hydrophobic amino acids with nonpolar R groups B. Polar amino acids with neutral R groups but the charge is not evenly distributed C. Positively charged amino acids with R groups that have positive charge at physiological pH. D. Negatively charged amino acids with R groups that have a negative charge at physiological pH. How would the amino acid lysine be classified? Think through your reasoning.
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Lysine is an amino acid known for having a side chain (R group) that ends in a primary amine group (-NH2). This group can accept a proton (H+) under physiological pH (around 7.4), giving it a positive charge. Show more…
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