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organelles
Term | Definition |
---|---|
nucleus | holds dna |
prokaryotic | no nucleus |
eukaryotic | nucleus |
cell theory | everything is made of one or more cells cell is the basic unit of structure and function all cells arise from pre existing cells |
cell membrane | acts as a protective barrier to the uncontrolled flow of water |
mitochondria | Provides the cell with energy |
vacuole | Helps with the release of cellular waste |
lysosome | Contain hydrolytic enzymes necessary for intracellular digestion |
ribosome | - contains RNA and the site of protein synthesis |
Cytosol/cytoplasm | The cytosol is the "soup" within which all the other cell organelles reside and where most of the cellular metabolism occurs. This is a collective term for the cytosol plus the organelles suspended within the cytosol. |
rough er | Proteins synthesized on these ribosomes collect in the endoplasmic reticulum for transport throughout the cell |
smooth er | Smooth ER plays different functions depending on the specific cell type including lipid and steroid hormone synthesis, breakdown of lipid-soluble toxins in liver cells, and control of calcium release in muscle cell contraction. |
Golgi | It is actually a stack of membrane-bound vesicles that are important in packaging macromolecules for transport elsewhere in the cell |
dna | genetic material |
cytoskeleton | the internal framework of cell |
flagella | used for movement |