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The Microscope. Grading for Mrs. J. Test 1 -- 20 Test 2 -- 20 Microscopy lab -- 10 Microscopy book -- 10 Poster -- 15 Cancer PowerPoint and presentation-- 15 Worksheets -- 10 Total: 100.
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Grading for Mrs. J • Test 1 -- 20 • Test 2 -- 20 • Microscopy lab -- 10 • Microscopy book -- 10 • Poster -- 15 • Cancer PowerPoint and presentation-- 15 • Worksheets -- 10 • Total: 100
The microscope allows us to see things from a different perspective.
Really Gross Vote • Continue: Yes or No?
Diseases HIV
Ocular Lens Course Adjustment Body Fine Adjustment Turret/Revolving Nosepiece Objective Lens Stage Clips Arm Stage Iris/Diaphragm Stage Height Adjustment Light Source Base 40X, 100X, 400X
Micrometres to Millimetres 1000 µm = 1 mm
Microscope Notes • Resolving Power: The ability to show separate objects as distinct. • Depth of Field: Refers to the thickness of an image that is in focus at any one time. Smaller depth of field larger depth of field
Types of microscope • Simple: Has the lowest level of magnification. Uses one lens and a mirror as a light source.
Compound: Uses two or more lenses and have greater magnification ability. Eyepiece magnification = 10X Highest Power Lens = 40X Total Highest power = 10 X 40 = 400X
Electron: These use an electron beam to scan or pass through a sample in order to produce an image. They can achieve magnifications of up to 10,000,000 X
Effects of Magnification on the Field of View (FOV): • The highest the magnification, the smallest the field diameter will be. Low power lens : Field Diameter = 4000 μm Medium power lens : Field Diameter = 1600 μm High power lens: Field Diameter = 400 μm