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scientist who discovered the cytoplasm and nucleus are important parts of the cell
cell theory (modern)
every living organism is made of one or more cells
cells are the functional units of life
all cells arise from pre-existing cells
all cells obtain energy and nutrients from their environment
all cells make molecules necessary for growth and repair
all cells dispose of wastes
all cells interact with other cells
all cells reproduce
er (endoplasmic reticulum)
folded membranes attached to the nucleus
proteins packaged into vesicles and sent to Golgi complex
membranous sacs derived from Endoplasmic reticulum
vesicles from ER fuse to Golgi and empty contents, new sacs bud off opposite end
sorts out proteins and lipids, packages / modifies molecules
cellular digestive system, made in golgi complex, have digestive enzymes, digest food / defective organelles
chloroplasts and mitochondria
thought to have evolved from bacteria, oblong, 1-5 um, double membrane on exterior, make ATP, have own DNA
single-membrane bound sacs found in plants
water regulation, store food / waste, cell support
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