The following amino acid is classified as nonpolar. Which of the following state

Question

The following amino acid is classified as nonpolar. Which of the following statements best describes why it is classified this way? H2N-C(Has CH3 attached below)HC (has double bonded O attached above)-OH

This amino acid is soluble only in nonpolar solvents, Its side-chain is not chaged at physiological pH, its side-chain is a nonpolar carbon chain (alkyl), it does not form a zwitterion, or it is neutral at physiological pH

At physiological pH, most carboxylic acids exist in their conjugate base form. Which of the following structures illustrates the conjugate base of a carboxylic acid? HCOO-, CH3COOH2+, HCOO+, HCOOH, or CH3COO+

Explanation / Answer

Non polar amino acids are those amino acids whose side chain is a nonpolar carbon chain (alkyl) like in the described example, alanine,

At physiological pH, most carboxylic acids exist in their conjugate base form of a carboxylic acid such as HCOO-,

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