Organelles can be separated from cell homogenate through:
Correct answer: C. Differential centrifugation
- A. Chromatography
- B. X-ray diffraction
- C. Differential centrifugation
- D. Auto-radiography
Explanation
The correct answer is differential centrifugation because it utilizes differences in size and density to isolate organelles from a cell homogenate. The process involves centrifuging the homogenate at progressively higher speeds to selectively sediment different organelles. Chromatography, X-ray diffraction, and auto-radiography are not suitable for this purpose: chromatography separates chemical mixtures, X-ray diffraction examines atomic structures, and auto-radiography detects radioactive materials.
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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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