Lab 2 Assignment-2 - Part A 1.1 Lab Activities See attached file for in-class lab activity Calculate the total magnification by multiplying the

Lab 2 Assignment-2 - Part A 1.1 Lab Activities See...

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Part A 1.1 - Lab Activities - See attached file for in-class lab activity Calculate the total magnification by multiplying the magnifying powers of your microscope lenses. 1.scanning lens __4___ × ocular lens __10__ = __40___ total magnification 2.low-power lens __10___ × ocular lens __10__ = __100___ total magnification 3.high-dry lens __40___ × ocular lens __10__ = ___400____ total magnification 4.oil immersion lens __100___ × ocular lens __10__ = __1000___ total magnification 1.2 - Reviewing Your Knowledge (pg. 29-30) A. Care and Use of the Microscope Correct each statement by crossing out the incorrect word(s) and inserting the correct word(s). 1.One hand Both handsare to be used to transport the microscope. 2.Tissue Special lenspaper can be used to clean the microscope lenses and prepared slides. 3.The microscope should be put away with the high-dry scanning objectivelens in position. 4.The coarse focusing fine focusing knobshould be used when using the high-dry lens. 5.The iris diaphragm should be completely open to obtain maximum contrast used to adjust amount of light needed to improve contrast. 6.The condenser should be in the lowest position (far from the stage) to focus the most light on the specimen raised completely up to the stage to focus the most light on the specimen. B. Parts of the Microscope Write the term that the phrase describes. 1.Large knob that moves the stage or objective lens a great distance. Used with scanning or low-power objective lenses only. Coarse Focus Knob 2.Flat platform beneath the objective lens on which the microscope slide is placed. Stage 3.Removable lenses that you look through to observe the microscope slide. Ocular lenses 4.Small knob that moves the stage or objective lens a very small distance and is used for precision focusing. Fine Focus Knob 5.Extends from the arm and contains the ocular lenses and rotating nosepiece. Head 6.Lens that condenses light through the specimen and is located below the stage. Condenser 7.Light from specimen passes through these lenses first. These lenses are located in the rotating nosepiece. Objective Lenses 8.Wide bottom part that supports the microscope. Base 9.Regulates the amount of light passing through the condenser. Iris Diaphragm 10.Vertical portion that connects the base to the head. Arm C. Total Magnification and Field of View
1.Calculate the total magnification of an object viewed with a 10× ocular and a 60× objective lens.

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