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Microscope info

7-3 Microscope targets

What does the coarse/fine adjustment do? raises and lowers the stage or objectives for focusing
What does the nosepiece do? rotates to change the magnification
What does the eyepiece do? contains a lens for viewing
What are the objectives? lenses helps magnify the slide
What does the diaphragm do? adjusts the amount of light to provide contrast on the slide
What is the arm of a microscope? handle and upper support
What is the base of a microscope? handle and lower support
What doe the stage clips do? holds the slide in place
What does the light do? illuminates the slide
What does the stage of a microscope do? supports the slide
Total magnification on low is___ 40x
Total magnification on medium is ___ 100x
Total magnification on high is ____ 400x
The amount you can see when you look into a microscope, portrayed as a circle on paper is called the _____ field of view
When you move a slide on a compound light microscope, how does the corresponding image you see move? It moves the opposite way.
Which scientist invented the compound microscope? Z. Jansen
Which scientists started the cell theory? Scheiden and Schwann
Which scientist viewed cork and used the word "cell"? R. Hooke
What scientist stated evidence for cells coming from pre-existing cells? R. Virchow
What scientist discovered microorganisms, including bacteria? A. v. Leeuwenhoek
What are 4 similarities between prokaryotes and eukaryotes -have DNA, have cell membrane, have organelles, have cytoplasm
What are 3 differences between CELLS of prokaryotes and eukaryotes? -prokaryotes are smaller, do not have a nucleus and do not have membranes around their organelles; eukaryotes are 10x larger, DO have a nucleus and DO have membranes around their organelles
What organisms are prokaryotes and eukaryotes? Bacteria are prokaryotes; Animals, plants, fungi and protists are eukaryotes
Created by: jenhaugen01



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