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6. Disadvantage of both SEMs and TEMs
- Give a lower resolution than light microscopes
- Can only be used on non-living things
- Can only be used on thin specimen
7. During Homogenization the solution is kept isotonic
- to prevent the movement of water in and out of organelles by osmosis
- to prevent changes in pH
- to reduce enzyme activity that break down organelles
8. Which of these microscopes have a higher resolution
- Electron Microscope
- Light Microscope
9. Filteration
- Separating cell debris or tissue debris, like connective tissue, from the organelles.
- Separating Organelles
- Breaking up the cells
10. Advantage of SEMs
- Can be used on thick specimen.
- Give High Resolution
- Can only be used on non-living things
11. Isotopic means
- lower concentration of chemicals compared to the cells being broken down
- same concentration of chemicals as the cells being broken down
- greater concentration of chemicals compared to the cells being broken down
12. SEMs stands for
- Scanning electron microscope
- Scanning electricity microscope
13. Order of which organelles are separated during ultracentrifugation
- Nuclei, Mitohondria, Lysosome, ER, Ribosomes
- Ribosomes, Lysosome, ER, Mitohondria, Nuclei,
- Lysosome, ER, Nuclei, Ribosomes Mitohondria,
14. TEMs stands for
- Transmission electron microscope
- Transmission electricity microscope
15. Ultracentrifugation
- Separating Organelles
- Breaking up the cells
- Getting rid of big bits
16. Advantage of SEMs
- Can produce 3D images
- Give low resolution
- Can only be used on non-living things
17. Which of these microscopes have a higher magnification?
- Electron Microscope
- Light Microscope
18. Homogenisation
- Breaking up the cells
- Separating Organelles
- Getting rid of big bits
19. Length of image
- Magnification * Length of Specimen
- Magnification / Length of Specimen
- Length of Specimen / Magnification
20. During Homogenization the solution is kept ice cold
- to reduce enzyme activity that break down organelles
- to prevent the movement of water in and out of organelles by osmosis
- to prevent changes in pH