function of each A. Ocular Lens- the lens on the top of the microscope that look into with 10x or 15x power. B. Body Tube- Connects eye piece to the objective lens C. Revolving Nosepiece- holds two or more objectives lenses and can be rotated easily to change power D. Objective lenses- 4x‚ 10x‚ 40x‚ and 100x powers E. Stage- The flat plate where the slides are placed for observation F. Diaphragm- Generally a five hold disc placed under the stage. Used to vary the intensity and size of the cone of
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3. Stage - Supports the slide being used. You place the slide on it. 4. Mirror or Light - Reflects or shines light upward through the diaphragm to illuminate the specimen. 5. Nosepiece - Holds the different objective lenses; allows the lenses to rotate for viewing. 6. Base - Supports the microscope. One hand is placed under this when carrying the microscope. 7. Eyepiece - Contains a lens that magnifies about 10X. You look through this. 8. Fine Adjustment Knob
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gender lens usually contains less than 10 points. Each point focuses on the distinct realities of men and women. Where appropriate‚ the distinct realities of girls and boys are included. Many gender lenses include: planning‚ implementing‚ monitoring and evaluating. Other gender lenses focus
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on objective 10x or 40x 8) What are the proper two items to clean the microscope lens? And when do you clean it? To properly clean the microscope you clean it with lens cleaner and lens paper so it does not scratch the lenses. You clean off all lenses including ocular lenses. Be sure not get the oil on the 10x or 40x objective. Lower stage and nose piece and set to 10x objective. Put dust cover on and return to cubby. 9) Number the following choices in chronological order. (use lab manual)
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shape you described in the question above. What do they look like? Answer: The onion root appears to be a long oval type shape with lots of tiny black dots inside it. 5. What is the first step normally taken when you look through the ocular lenses? Answer: To adjust the Ocular lens so that there is only one light circle
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answer. Which microscope would be useful when studying the internal structure of a minute specimen? (2 points) 2.List two jobs where microscopes are used. Describe in what capacity they are used. (2 points) 3.Why is a special paper used to clean the lenses of a microscope? (1 point) 4.State the name of each of the tagged parts on the microscope shown above in Step 1 of the Procedures: (11 points) a. b. c. d. e. f. g. h. i. j. k. 5.What type of microscope has primarily been used in this
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small for the naked eye. A compound microscope is a microscope fitted with two or more convex lenses. The high magnification produced by these lenses together enables a detailed study of micro-organisms‚ cells and tissues. These types of microscopes are therefore widely used in scientific and medical research. The basic design of a compound light microscope consists of convex lenses fitted at either end of a hollow tube. This tube is fitted on an adjustable‚ rotary nosepiece. There
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procedures should be done just prior to adjusting the diopter‚ when using the compound microscope? Clean all lenses with lens paper Turn the light on Adjust the iris diaphragm Adjust the fine focus Question 7 of 25 Two parts of the microscope that regulate the amount of light visible through the ocular are the: fine and coarse adjustment knobs ocular and objective lenses illuminator and revolving nosepiece condenser and iris diaphragm Question 8 of 25 Initial focusing
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optical microscope widely use in the field of cell biology‚ microbiology‚ biotechnology‚ pharmacology‚ forensic and medical diagnosis especially when dealing with tissue fragments. It is a type of microscope which uses visible light and a system of lenses to magnify images of small samples. In other words‚ Optical microscope is a technical device which is used for visualizing structures that are too small to see with the unaided eye. The LED of microscope features a long service life of 20‚000 hours
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write a word or phrase in the blank to make the statement true. __F__ 1) The microscope lens may be cleaned with any soft tissue. USE ONLY LENS PAPER. REGULAR TISSUES CAN SCRATCH THE LENSES. __F__ 2) The coarse adjustment knob maybe used in focusing with all objective lenses. COARSE ADJUSTMENT IS ONLY USED ON SCANNING POWER. __T__ 3) When beginning to focus‚ the lowest power lens should be used. __T__ 4) Resolution decreases as the amount of light coming
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