In cell fractionation various components of cells including its organelles can be isolated in different layers depending upon?
Correct answer: D. Both a and b
- A. Their physical properties like size & weight
- B. Their physical properties like density
- C. Their electrical properties like their charges
- D. Both a and b
Explanation
Cell fractionation involves two steps: homogenisation (cells are broken apart in a blender) and centrifugation (cell components are spun in a centrifuge and separated on the basis of density - physical properties of the cell components.In density gradient centrifugation, the centrifuge tube is filled with a series of solutions of decreasing density - physical properties of the medium.
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About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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