Answer: Centrifugation (ultracentrifuge).
- A PCR, used to amplify specific DNA sequences
- B Gel electrophoresis, separating molecules by charge and size
- C Centrifugation (ultracentrifuge)
- D Chromatography, separating molecules by their chemical properties
Correct answer: C. Centrifugation (ultracentrifuge)
Explanation: Ultracentrifugation separates organelles by size and density. Different organelles pellet at different centrifuge speeds.
Animal cell structure with major organelles labeled. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
Cell theory, prokaryotic vs eukaryotic cells, organelles and their functions. Foundation of all biology.