Biology Notes 1.wps - Cell Theory 1 Cells are the smallest Functional Units of Biology-Smallest Living Organism 2 All cells come from other

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Cell Theory 1) Cells are the smallest Functional Units of Biology. -Smallest Living Organism 2) All cells come from other cells. -Cells Multiply by Dividing Two Major Cell Types 1) Prokaryotic Cells- No Nuclei 2) Eukaryotic Cells- Nuclei -Karyon- Nucleus Prokaryotic Cells : Occur in two types of organisms (called prokaryotic organisms). 1) Bacteria - Small single celled organisms - String of cells- streptococcus - Cluster of cells- Staphylococus. 2) Archea - Small single celled organisms Ÿ Prokaryotic cells multiply by simple division (Binary Fission) Ÿ DNA found in Prokaryotic Cells have little protein associated with it. Ÿ Prokaryotic Cells have few if any internal membranes. Prokaryotic Cell
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Eukaryotic Cells : Much larger than prokaryotes. They have a true nucleus. Ÿ Eukaryotic cells contain many internal membranes (organelles) Ÿ DNA has lots of protein associated with it and DNA is divided into separate, distinct chromosomes. Ÿ Cell division is a `complicated process called Mitosis -Chromosomes are equally distributed into two new cells. Eukaryotic Animal Cell
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This note was uploaded on 04/08/2008 for the course BIO 101 taught by Professor Mellon during the Fall '07 term at North Shore Community College.

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Biology Notes 1.wps - Cell Theory 1 Cells are the smallest Functional Units of Biology-Smallest Living Organism 2 All cells come from other

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