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Part A

Cells and Diffusion

TermDefinition
Diffusion the movement of molecules for areas of high concentration to low concentration
Osmosis the movement of molecules from high concentration of water to low concentration
Permeable allows any molecule to diffuse across membrane
Semipermeable allows some molecules to diffuse across membrane (cell membrane)
Non-permeable allows no molecules to diffuse across membrane (cell wall)
Nucleus controls all activities of the cell; growth and reproduction
Cell membrane allows certain molecules to go in or out of the cell -> molecules DIFFUSE in or out of the cell -> made up of 2 pf a phosphorous layers interconnected
Cell wall supports and protects the cell; does NOT allow molecules in or out (PLANT CELL)
Chromosomes protein that contain DNA which has coded information for making molecules
Rough E.R produces and stores PROTEIN
Smooth E.R produces and stores FATS and OILS
Golgi bodies modifies and packages protein from ROUGH E.R with enzymes
Ribosomes HELPS rough E.R make proteins. Is attached to rough E.R
Centrioles helps with cell division (mitosis). Spindle fibres come from here (ANIMAL CELL)
Mitochondria converts sugar into energy for the cell
Cytoplasm fluid in the cell; allows organelle to move around
Vacuole stores water, minerals, and vitamins. Much bigger in plant cells
Lysosomes breaks down food including bacteria, old/damaged organelles (ANIMAL CELL)
Chloroplasts uses sunlight to make its own food (PLANT CELL) -> photosynthesis -> C02+H20+light+sugar+O2
Created by: ericayng
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