Microscopy Lab Essay

391 WordsNov 8, 20112 Pages
Microscopy Lab Introduction: Cells are known as the smallest functional unit of life and all living organisms. These cells are so tiny, they are impossible to see by the human eye. If they are impossible to see, how can we know they exist and how can scientists study such units of life? The answer is simple: They use microscopes. Microscopes are indispensable instruments because they are used to view such samples and objects that cannot be seen with the unaided eye. Biologists may use them to examine cells, bacteria, and the structures of bones and tissues while Geologists may use them to study rock samples. With Microscopy, Scientists can study atomic structures, cells, tissue and blood cells, which in turn can spot and protect against harmful diseases caused by pathogens. Purpose: The purpose of this laboratory was to improve microscopy skills by practicing the use of microscopes in a lab environment, determining the field of view for low, medium and high objectives in millimeters and microns and examining two tissue samples (blood and a multi-polar neuron). This laboratory allowed individuals to view erythrocytes and leukocytes under different magnification levels. Using This lab people can learn to examine, illustrate and estimate the size of these neurons, erythrocytes and leukocytes under 100x. He/she look at these neurons, erythrocytes and leukocytes and can draw and label them, giving us a better knowledge of how these specimen look in millimeters and microns. Materials: • Microscope • Clear Ruler • Slide of Neuron • Blood Sample Slide Methods: Step 1: Grab slide of the specimen being observed and place it on the stage of the microscope. Turn Microscope on. Step 2: Move stage using course adjustment as high as possible. Place lowest objective (40x) over specimen. Step 3: Use Alligator Clips to hold down specimen (prevent it from moving) Step

More about Microscopy Lab Essay

Open Document