AAMC Biological and Biochemical Foundations of Living Systems (BB) Full-Length (FL) 3 Practice Test

The structure responsible for the detoxification of various metabolites in the cell is the peroxisome. Peroxisomes contain enzymes that catalyze reactions involved in the breakdown of fatty acids and the detoxification of harmful byproducts of metabolism, such as hydrogen peroxide, which is generated as a byproduct of metabolic processes. These organelles contain enzymes like catalase that convert hydrogen peroxide into water and oxygen, thereby preventing damage to cellular components.

In comparison, lysosomes are primarily involved in the degradation of macromolecules and recycling of cellular materials, not specifically in detoxification. The nucleus serves as the control center of the cell, housing genetic material and managing cellular activities, while the Golgi apparatus is focused on modifying, packaging, and distributing proteins and lipids received from the endoplasmic reticulum. Thus, the unique functions of peroxisomes in metabolite detoxification make them the correct answer.