Lab REPORT bIO.docx - Assessment SB0011 Format(1 Methods(2...

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Assessment : Format (1%) Methods (2%) Calculation/ Drawing/Dat a/ Results (2%) Discussion (3%) Conclusion (1%) Ref. (1%) Total (10%) EXPERIMENT TITLE INTRODUCTION TO MICROSCOPY GROUP MEMBER MATRIX NO. 1.MUHAMMAD FADZLIH BIN BAHARUDIN FS17110036 2. NUR ANIS SYAHIRAH BINTI ASHARI FS17110079 3. NOOR SYAFIKAH BINTI ABDUL RAHIM FS17110182 4. DATE OF EXPERIMENT : 10 JULY 2017 DATE OF SUBMISSION : 17 JULY 2017 DEMONSTRATOR : MS. JUVITA WONG JUN Introduction SB0011 BIOLOGY PRACTICAL 1 LABORATO RY REPORT
The first microscope to be developed was the optical microscope, although the original inventor is not easy to identify. An early microscope was made in 1590 in , Middelburg . Two eyeglass makers are variously given credit: Hans Lippershey and Hans Janssen. Giovanni Faber coined the name microscope for Galileo Galilei's compound microscope in 1625. Microscope is a tool used to enlarge images of small objects that are hard to study with bare eyes. The compound light microscope, which is going to be used in this lab activity, is an instrument with two lenses and various knobs to focus the image. In this lab, we will learn about the proper use and handling of the microscope. Objectives At the end of this practical, we should be able to: 1. Identify the name and the function of the basic parts of the compound light microscope. 2. Learn how to focus an object with the compound microscope. 3. Measure the diameter of the field of view of each magnification power. Materials Compound light microscope Slides Marker pen Letter ‘e’ from newspaper Procedure A) Identification of parts
Microscope should obtain from the cabinet and place it securely on the table.Identify the following parts on the microscope. 1.Eyepiece(ocular lens): Contains a magnifying lens 2.Body tube: Keeps proper distance between the eyepiece and the objectives. 3.Arm: Supports the body tube 4.Nosepiece: Holds the objectives and can be rotated 5.Scanning power objective: Hold 4x lens used to view the whole slide 6.Low-power objective: A shortest objective that magnifies 10X (4X sometimes) 7.High-power objective: A longest objective that magnifies 40X (100X sometimes) 8.Oil immersion objective: Holds a 95x(to 100x) lens and is used in conjunction with immersion oil to view objects with the greatest magnification 9.Coarse-adjustment knob: Moves the body tube to focus the image 10.Fine-adjustment knob: Moves the body tube slightly to sharpen the image 11.Diaphragm or diaphragm control lever: Contol amount of illumination used to view the object 12.Light source: An attached lamp that directs a beam of light up through to view the object 13.Base: Supports the microscope 14.Stage: Supports the slide being observed 15.Stage clips: Holds the slide 16.Mechanical stages: A moveable stage used in accurate positioning of the slide 17.Mechanical stage control knob: To control foward/reverse movement, and the other controls right/left movement B) Focusing the Microscope
Lowest Power 1.The nosepiece is turn so that the lowest power lens in straight alignment over the stage.

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