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Ch. 6 Notes

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Subject: 
Biology
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Tags: 
Biology
organelles
Cell Biology
Membrane biology
Endomembrane system
cell
Cytoskeleton
Endoplasmic reticulum
Eukaryote
Golgi apparatus
Vesicle
Cytoplasm
health
Cells

Ch. 6: A Tour of the Cell All organisms are made of cells simplest collection of matter that can be alive Microscopy progressed the discovery and early study of cells Robert Hooke looked at dead cells from the bark of an oak tree Antoni von Leeuwenhoek ? intro to the world of microorganisms Cell fractionation takes cells apart and separates major organelles and subcellular structures from one another using a centrifuge Prokaryotic vs. Eukaryotic Euk: DNA is in the nucleus Pro: DNA is in the nucleoid (not enclosed by membrane) Eukaryotic cells are generally much larger Cytosol: semifluid portion of the cytoplasm Biological membrane: phospholipid bilayer with proteins embedded Nucleus contains most of the genes in the cell

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