Microscope_Cell.doc - BioLab3 Lab Report 3 Microscope and...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
BioLab 3 Lab Report 3 Microscope and the Cell Student Name: Anish Pokharel I. Purpose of the Microscope Define the following terms. Magnification The degree to which the image of a specimen is enlarged Resolution How well specimen detail is preserved during the magnifying process Contrast The ability to see specimen detail against its background II. Compound Microscope EXERCISE 1 – Label the parts of the compound microscope 1. Eye piece 2. Arm 3. Coarse adg 4. Fine adg 5. Nose piece 6. Objective lens 7. Stage clips 8. Stage 9. Diaphragm 10. Condenser lens 11. In base illuminator 12. base Define the following terms. © 2016 Access Learning Systems SP18 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Eyepiece Focuses light on the retina of the eye Arm The handle of the microscope Course adjustment knob Large knob used to make large movements of the objective lens Fine adjustment knob Clarifies detail of the specimen Revolving nosepiece Allows for ease of movement between lenses Objective lenses Power is usually 4x, 10x, 40x, 100x Stage clips Used to secure the slide into position Stage Where the microscope slide is placed Iris diaphragm lever Regulates the size of the opening in the diaphragm Condenser Converges light rays from the light source so they can pass through the specimen on the slide and into the objective lens Light source Located in the base of microscope Base Lowermost part of the microscope in contact with the table EXERCISE 2 – Calculate microscope magnification © 2016 Access Learning Systems SP18 2
Image of page 2
Calculate the magnification for the combined eyepiece and objective lens in the table. III. Viewing Microscope Slides EXERCISE 3 – Focus the microscope Define the following terms. Temporary wet mount Prepared in the laboratory Permanent mount Prepared by a biological supply house Parcentral The property of a microscope which keeps the specimen relatively centralized in the field of view from one objective lens to the next Parfocal The ability of the microscope to remain in focus when switching from one objective lens to the next highest power EXERCISE 4 – Specimen orientation Step 4: With the scanning lens in place, the prepared slide is moved to the right while watching the image through the microscope.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern