The number of times greater that an image is than the actual object. Magnification = Image Size/Object Size
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Resolution
The ability to distinguish between two objects very close together; the higher the resolution, the greater the detail can be seen.
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Light Microscope
Magification = 1500x Resolution = 200nm
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Transmission Electron Microscope
Magnification = 500,000x Resolution = 0.1nm
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Scanning Electron Microscope
Magnification = 100,000x Resolution = 0.1nm
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Nucleus
The largest organelle inside the cell, houses all of the cell's genetic material in the form of DNA, which contains the instructions for protein synthesis.
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Nucleolus
Dense, spherical structure inside the nucleus. Makes ribosomes and RNA which pass into the cytoplasm and are used in protein synthesis.
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Nuclear Envelope
A double membrane envelope with pores that surrounds the nucleus.
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Rough Endoplasmic Reticulum
Continuous with the nuclear envelope and studded with ribosomes. Transports proteins made by the attached ribosomes.
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Smooth Endoplasmic Reticulum
Involved in the making of lipids, not studded with ribosomes.
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Golgi Apparatus
Stack of membrane bound flattened sacs, used for modifying proteins before exporting them from the cell.
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Mitochondrion
Spherical or sausage-shaped organelles, and the site of aerobic respiration (energy) in the cell. Has a double membrane. Oxegen combines with glucose to create energy (ATP) required for metabolism and cellular activities.
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Lymosomes
Spherical sacs with a single membrane. Contains digestive enzymes that are used to break down material.
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Chloroplasts
Only found in plant cells. Have two membranes and contribute in photosynthesis. Contains thylakoids.
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Plasma Membrane
Surrounds the outside of both Eukaryotic and Prokaryotic cells, made up of a phospholipid bilayer and it controls the movement of various substances in and out of the cell.
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Centrioles
Small tubes of protein fibres, a pair of them are found next to the nucleus in animal cells. In Mitosis, the centrioles divide and migrate to each pole of the nucleus.
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Flagella and Cilia
hair-like extensions projecting from the surface of the cell.
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Card 2
Front
The ability to distinguish between two objects very close together; the higher the resolution, the greater the detail can be seen.
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