Microscope Work 1. A light microscope with an ocular system of lenses and an objective system of lenses. (1) phase contrast microscope (2) meter (3) focus (4) compound microscope. 2. Achieving the proper distance between the objective and the specimen so as to produce a sharp image. (1) focus (2) kilocalorie (3) stereomicroscope (4) mechanical system. 3.Thelens in the eyepiece in a microscope. (1) filtrate (2) ocular lens (3) objective lens (4) radio telescope. 4. A compound microscope lets you see the details within the living specimens to be seen without straining. (1) micromanipulator (2) filtration (3) phase contrast microscope (4) stereomicroscope. 5. 1/1000 of a millimeter. (1) focus (2) objective lens (3) dependent variable (4) micron. 6. The ability of an optical system to enlarge the image of an object. (1) micron (2) radio telescope (3) kilocalorie (4) magnification. 7. In a microscope, this is the lens that is closest to the specimen. (1) focus (2) dependent variable (3) phase contrast microscope (4) objective lens. 8.An instrument that uses electron beams to consider a magnified image. (1) filtration (2) electron microscope (3) kilocalorie (4) compound microscope. 9. The structural parts of a microscope that hold the specimen and lenses and allows for focusing of the image. (1) mechanical system (2) phase contrast microscope (3) dependent variable (4) spectrum. 10. An instrument that lets the user control the movement of very delicate instruments under a compound microscope.
Added by Ana H.
Close
Step 1
Step 1: The first question describes a light microscope with an ocular system of lenses and an objective system of lenses, which is known as a compound microscope. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 71 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Questions to be answered 1. Which objective should always be in place, both when beginning to use the microscope and when putting it away? 2. Which objective is in focus at the greatest and safest distance from the slide? 3. A total magnification of 100X requires the use of the 10X ocular lens with which objective? 4. If the letter e is moved to the right, in what direction does it appear to move in the field of view? 5. A microscope is called compound when it has more than one set of what? 6. What part(s) of a microscope regulates the amount of light? 7. What word is used to indicate that if the object is in focus at low power, it will also be in focus with high power? 8. Describe the differences between a compound light microscope and a dissecting (stereoscopic) microscope. In what situations would you use a stereoscopic microscope? 9. How do animal cells differ from plant cells? 10. Describe the relationship between magnification, diameter of the field of view, and the brightness of the field of view for the scanning, low- and high-power objectives on the compound microscope.
Supreeta N.
1. Eyepiece: This part holds the objective lenses and is able to rotate to change magnification. This part of the microscope adjusts the amount of light that reaches the specimen (1 = least to 5 = most). 2. Base: 3. Nosepiece: C - This part moves the stage slightly to help you sharpen or "fine" tune your view of the specimen. Stage: Where you look into the microscope. This part allows you to view the image on the stage and contains the ocular lens. 5. Coarse Adjustment Knob: E - This part is used to support the microscope when carried. Diaphragm: Part of the microscope that supports the slide being viewed. 6 - These are used to hold the slide into place. 7. Stage Clips: 8. Fine Adjustment Knob: H - The bottom part of the microscope. 9. Objective Lenses: I - This part of the microscope is found on the nosepiece and ranges from low to high power. 10. Arm: J - This part moves the stage up and down to help you get the specimen into view. This part of the microscope projects light upwards to allow you to see the specimen. 11. Light Source.
Dominador T.
Directions: Label the microscope below. Identify the part of microscope that performs the following functions. Write the number of you answers. Used to make large changes in focus. NOTE Never use this when viewing on high power Use to vary the amount of light passing through the slide. Usually it is better if the amount of light is low. Used to safely transport microscope The second lens you use when doing proper microscope work. Usually 10 X The highest magnification used. Usually 43 X. NEVER use the course adjustment when using this lens. Piece-The part you look at with your eye. Usually 10 X magnification Slides are placed on this Used to safely transport the microscope Use to keep the slide in place. Reflects light up to the viewer's eye Allows for quick change of objectives The first lens you use when doing proper microscope work. Usually 4 X Used to small adjustments of focus
Suman K.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD