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Cells and Diffusion

cells and diffusion

TermDefinition
Nucleus controls all activities of the cell; growth and reproduction
Cell Membrane allows certain molecules to go in or out of the cell molecule diffuse in or out of the cell mad up of 2 phosphorus layers interconnected
Cell Wall Supports and protects the cell; does not alllow moleccules in or out
Chromosomes proteins that contain DNA which has coded information for making molecules
Rough Endoplastic Reticulum Produces and stores proteins
Smooth Endoplastic Reticulum produces fats and stores oil
Golgi bodies/apparatus Modifies and packages proteins from Rough Endoplastic Reticulum with enzymes
Ribosomes helps Rough Endoplastic Reticulum make protein is attactched to Rough Endoplastic Reticulum
Centrioles (only animal cell) helps with cell division (mitosis) Spindle fibres come from here
Mitochondria converts sugar to energy
Cytoplasm fluids in the cell; allows organelles to move around
Vacuole stores waters minerals and vitamins much bigger in plant cells
Lysosomes (only in Animal cells) - Breaks down : - food - Invading bacteria _Old/damaged organelles
Chloroplasts(Plant only) - uses sunlight to make its own food (photosynthesis) -photosynthesis CO2+H2O+light = C6H12O6 (sugar) + O2
diffusion - movement of molecules from areas of high concentration to low concentration
osmosis movement of water molecules from high concentration of water to low concentration of water
permeable allows any molecule to diffuse across membrane
semi-permeable allows certain molecules to diffuse across membrane
non-permeable allows no molecules to diffuse across membrane
Created by: Hajeet
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