Examine the following diagram. -Consider the following generalized reaction. This reaction occurs when the R group (shown in the box) is a hydrogen atom (-H). Another reaction occurs when the R group is -CH₃. Which of the following correctly compares these two reactions? A) Both use the same enzyme but the structure to which the amino acid is bonded is different. B) Both use a different enzyme but the structure to which the amino acid is bonded is the same. C) Both use the same enzyme and the same structure to which the amino acid is bonded. D) Both use a different enzyme and a different structure to which the amino acid is bonded.

Question

Quizplus · Accepted Answer

The question states that two reactions occur, one with an R group of -H and the other with an R group of -CH₃. Since the R group is different, it is likely that a different enzyme is required to catalyze each reaction. Additionally, the question does not state that the structure to which the amino acid is bonded is the same in both reactions, so it is likely that a different structure is involved in each reaction as well. Therefore, choice D is the most accurate comparison.

Examine the Following Diagram