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SEER Training Modules, Module Name. U. S. National Institutes of Health, National Cancer Institute. Day Month Year (of access) <http://training.seer.cancer.gov/>.
1. Every living organism is made of one or more cells
2. Cells are the functional unit of multicellular organisms
3. Cells arise from pre-existing cells
atoms-dna-virus-bacteria-mitochondria-eukaryotic cells=cell size
three basic feature:
1. plasma membrane aka cell membrane
2. genetic material
3. cytoplasm
Prokaryotes
•no membrane bound nucleus, chromosomes grouped together in an area called the "nucleoid"
•no membrane bound organelles
•smaller than eukaryotes
Eukaryotes
•has a membrane bound nucleus and organelles
•plants, animals, fungi, protista
http://www.biologycorner.com/APbiology/cellular/notes_cells_theory.html#at_pco=smlre-1.0&at_si=542b1f928d09ce7e&at_ab=per-2&at_pos=1&at_tot=4
Cytoplasm: Within cells, the cytoplasm is made up of a jelly-like fluid (called the cytosol) and other structures that surround the nucleus
cytoskeleton: The cytoskeleton is a network of long fibers that make up the cell’s structural framework. The cytoskeleton has several critical functions, including determining cell shape, participating in cell division, and allowing cells to move. It also provides a track-like system that directs the movement of organelles and other substances within cells.
Endoplasmic reticulum:This organelle helps process molecules created by the cell. The endoplasmic reticulum also transports these molecules to their specific destinations either inside or outside the cell.
http://ghr.nlm.nih.gov/handbook/basics/cell
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