Exhibit 3A (for this chapter) Refer to Exhibit 3A.Which of these amino acids could act as a good buffer at pH = 4.5

Question

Exhibit 3A (for this chapter)  Refer to Exhibit 3A.Which of these amino acids could act as a good buffer at pH = 4.5

Quizplus · Accepted Answer

Aspartic Acid has an acidic side chain with a pKa value of 3.9, which allows it to act as a good buffer at pH 4.5, which is slightly lower than its pKa. The other amino acids listed do not have side chains with appropriate pKa values to act effectively as buffers at pH 4.5.

Exhibit 3A (For This Chapter) Refer to Exhibit 3A