Density gradient centrifuges are used to separate cell structures according to their relative density. Cell structures with a larger density move further down the centrifuge tube. What is the correct sequence of the cell structures, beginning at the top of the centrifuge tube?
- Achloroplasts → nuclei → mitochondria → ribosomes
- Bnuclei → chloroplasts → mitochondria → ribosomes
- Cribosomes → chloroplasts → mitochondria → nuclei
- Dribosomes → mitochondria → chloroplasts → nuclei