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16 Cards in this Set
- Front
- Back
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What is a bright-field?
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- microscope
- most widely used piece of equipment in a biology laboratory |
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What is an ocular lens?
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- inside the eyepiece
- produces a magnification of 10X |
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What are objective lens?
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- located in the rotating nose piece
- 3 of them - produce magnification of 4X, 10X, or 40X |
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What is a condenser?
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light produced from a white light source passes through it where the light rays are bent toward the specimen.
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What is a stage?
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light passes through it after the iris diaphragm before passing through the specimen.
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What is a condenser adjusting knob?
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how to adjust the amount of light passing through a specimen via the condenser
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What is the rotating nose piece?
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how to adjust objective lens
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What is total magnification?
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power of objective lens X power of the ocular lens
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What does the eye piece house?
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ocular lens
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How can the light passing through a specimen be adjusted?
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- raising or lowering of the condenser
- adjusting the iris diaphragm |
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What is important in the care of a microscope?
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carry with 2 hands
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What is important when focusing on a specimen?
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- specimens must be directly under an objective lens
- position the objective lens the proper distance away from the specimen |
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What item is used in this exercise to measure the microscopic field?
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plastic ruler
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What is a spirogryra?
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alga
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What is a paremecium?
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one-celled animal
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What is another name for a human red blood cell?
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erythrocytes
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