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Ch. 7: Disc. Of Cell

Section 1

TermDefinition
Cells The basic units of living organisms
Anton Von Leeuwenhoek 1674: he made his own microscope and looked at blood, yeast, and found bacteria which he called wee beasties
Robert Hooke Used the microscope to look at cork and saw cells and said they reminded him of jail cells.
Cell Theory 1. All organisms are composed of one or more cells, 2. The cell is the basic unit of structure and organization of organisms, 3. All cells come from preexisting cells. by German Theodor Schwann(animals) and Matthias Schleiden(plants).
Prokaryotes Prokaryotes are a group of organisms whose cells lack a membrane-bound nucleus .
Eukaryotes Any organism whose cells contain a nucleus and other structures enclosed within membranes.
Eyepiece Piece of the microscope you look through.
Objectives These change the amount of magnification and allow you to look at even smaller things.
Nosepiece This rotates the objectives.
Coarse Adjustment Focuses detail on low power. Moves stage up and down.
Fine Adjustment Focuses detail on high adjustment.
Diaphragm Different sized holes that are used to vary the amount of light that is projected onto the slide.
Stage Area where the slide rests to be observed.
Created by: Austin Rector
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