microscope
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | use only special grit-free lens paper to clean the lenses. use circular motion to wipe lenses. clean before and after use
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| show | with the lowest powered objective lens in position changing to the higher-power lenses as necessary
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| show | only with the lowest power objective lens
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| show | always use w wet mount preparations
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| show | never remove parts from the microscope. inform your instructor of any mechanical problems that arise
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| show | remove the slide from the the stage, rotate the lowest power objective lens into position, wrap the cord neatly around the base and replace dust cover n return microscope to cabinet
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| show | instrument of magnification
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| show | through the interplay of two lenses---the ocular lens and the objective lens
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| show | magnifies the specimen to pro duce a real image that is projected to the ocular.
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| show | projected to the ocular
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| virtural image | show 🗑
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| show | equal to the power of the ocular lens multiplied by the power of the objective lens used. ex 10 x 45 equals 450 TM or 10 x 45 TM
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| resolution | show 🗑
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| show | bottom of the ms. provides a sturdy flat surface to support and steady the ms
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| show | located in the base. the light from the lamp passes directly upwardthrough the ms
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| light control knob | show 🗑
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| stage | show 🗑
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| show | holds the slide in position for viewing and has two adjustable knobs that control the precise movement of the slide
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| show | small nonmagnifying lens located beneath the stage that concentrates the light on the specimen. may have a light that raises n lowers to vary the light
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| show | best position is close to the inferior surface of the stage
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| iris diaphragm lever | show 🗑
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| show | can be moved to close the diaphragm and improve contrast.
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| show | if your field of view is too dark, you can open the diaphragm to let more light in
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| show | allows u to make large adjustments to the height of the stage to initally focus focus your specimen
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| fine adjustment knob | show 🗑
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| head | show 🗑
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| show | vertical portion of the ms that connects the base to the head.
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| nosepiece | show 🗑
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| show | carries three or four objective lenses and permits positioning of the lenses over the hole in the stage
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| objective lenses | show 🗑
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| show | has four objective lenses scanning 4x, low power 10x, high power 40x, oil immersion 100x
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| ocular lens (es) | show 🗑
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| show | most have a magnification power of 10x
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| parafocal | show 🗑
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| field | show 🗑
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| show | how far is the bottom of the objective lens from the surface of the slide.
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| ms field | show 🗑
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| lens for storage | show 🗑
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| show | use the lowest power of lens
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| show | the enlarged image u see
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| resolution | show 🗑
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| working distance | show 🗑
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| show | the area of the slide seen when looking through the microscope
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| parafocal | show 🗑
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| show | a) place the object in a drop of water (or saline) on a clean slide b) hold a coverslip at a 45 degree angle w the fingertips; and c) lower the coverslip slowly
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
pkts68