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Chapter 7 Biology Review


AB
vacuolemembrane-bound, fluid filled sac, provides storage for food, enzymes & waste
Golgi apparatusclosely-stacked, flattened membrane sacs, modifies proteins & repackages them
ribosomessynthesizes (makes) proteins
endoplasmic reticulumfolded membrane that forms a network of interconnected compartments in the cytoplasm
cytoplasmclear fluid inside cell
nucleusmanages cell functions in eukaryotic cell
chloroplastcontains chlorophyll which traps energy (sunlight), contains stacks of sacs called grana
lysosomessacs containing digestive enzymes that get rid of cell waste or bacteria
cell wallgives a plant, fungi, or protist cell support
mitochondriaproduce a usable form of energy for the cell
plastida chloroplast is one of these, others store starches or lipids
SchleidenScientist - concluded that all living plants are made of cells
SchwannScientist - concluded all animals are made of cells
Hookecoined the term "cell" after observing a cork plant which had square looking cells
LeeuwenhoekScientist that described first cells with a simple microscope
compound light microscopeuses 2 or more lenses to magnify living/prepared slides
electron microscopemicroscope that allowed scientists to view molecules
plasma membranebilipid layer of molecules with protein molecules embedded in it, controls what enters and leaves the cell
prokaryoteorganisms that lack internal membrane bound structures, have no nucleus and are usually single celled
eukaryotehave a nucleus, membrane bound organelles, and may be either single or multicellular
cytoskeletonmicroscopic tubules or fibers that support the cell
cilianumerous hair-like structures on the cell's surface, involved in locomotion
flagellawhip-like, long, structures, not many on a cell's surface, locomotion
unicellularanimals that are one celled, locomotion is usually by cilia or flagella
fluid mosaic modeldescribes the plasma membrane as a structure that is liquid and not rigid
transport proteinsspan the plasma membrane, create a selectively permeable membrane that regulates what enters and leaves the cell