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Science Bio 2013

TermDefinition
Diaphragm controls the amount of light that enters a microscope.
coarse adjustment knob Fine tuning in a microscope. Use with high or medium power objectives.
Body tube Holds eyepiece lens at top and objective lens at bottom
Stage clip Holds slide to the stage
Arm Holds the tube and stage, and attaches them to the base
Ocular The eyepiece
Cell Membrane - Thin outer covering that regulates materials coming into the cell and waste materials going out -Holds contents of the cell in place -selectively permeable
Cell wall -Only in plants - surrounds the cell membrane -permeable -helps maintain the shape of the cell
Centrioles - Protein fibers that aid in cell division
chloroplast -only in plants -the food factories in a plant cells -contains chlorophyll and carries out photosynthesis
chromatin -loosely coiled DNA that is found in the nucleus -genetic information
Chromosomes -tightly coiled DNA that is found in the nucleus - genetic information
cilia Tiny hairs that work together to move a cell
Flagellum Whip-like tail that moves the cell (not found in all animal cells and not found in plant cells)
Created by: KatlanS
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