Rank the following organelles in terms of most dense to least dense: I. mitochondria II. peroxisomes III. lysosomes

The correct answer is "II. peroxisomes, I. mitochondria, and III. lysosomes".

Explanation:

The differences in organelles density are utilized for purification purposes, creating density gradients that helps to isolate each organelle separately. The correct order of organelles from most dense to least dense is: peroxisomes, mitochondria, and lysosomes. Peroxisomes have a density of around 1.19 g/ml, mitochondria of around 1.07 g/ml, and lysosomes of around 1.04 g/ml.

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