A researcher has isolated an organic,water-soluble chemical from roses.After performing in vivo tests,the scientist determines that the chemical supplies no energy for cells,but protects cell membranes from being damaged by certain environmental factors.Based on this information,the researcher may have discovered a(n)________.

Question

Quizplus · Accepted Answer

An antioxidant is a substance that prevents or reduces the damage caused by free radicals and oxidative stress. The chemical isolated from the roses provides protection to cell membranes, indicating that it may act as an antioxidant. It does not supply energy or act as a precursor, and there is no indication that it is used for autoanalysis.

A Researcher Has Isolated an Organic,water-Soluble Chemical from Roses