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cells and diffusion

Part A

TermDefinition
Diffusion the movement of molecules from areas of high concentration to low concentration
Nucleus Controls all the activities in the cell, including and growth and reproduction
Cell Membrane Protects the cell, allows molecules to diffuse in and out of the cell, made up of 2 phosphorus layers interconnected
Cell wall Supports/protects the cell; does not allow molecules in or out
Chromosomes Protiens with DNA that have coded information for making molecules
Rough Endoplasmic Reticulum Produces and Stores Protiens
Smooth Endoplasmic Reticulum Produces and Stores Fats and oils
Golgi Bodies Modifies and packages proteins from rough ER with enzymes
Nucleolus produce and assemble the cell's ribosomes
centriole Helps with mitosis (cell division) ; spindle fibres come from here
Lysosomes Breaks down food, invading bacteria, and old/damaged organelles
cytoplasm fluid that runs throughout the cell; allows organelles to move around
Ribosomes Attatched to Rough ER , helps rough ER make protiens
Mitochondria Converts sugar into energy for the cell
Vacuole Stores vitamins, minerals, and water; much larger in a plant cell
Chloroplasts uses sunlight to make its own food; photosynthesis
Osmosis movement of water molecules from high concentration to low concentration of water
Photosynthesis H20 + C02 + light ---> sugar + 02
Permeable allows any molecules to diffuse across membrane
Semi- Permeable allows certain molecules to diffuse across membrane (cell- membrane)
Non-Permeable allows no molecules to diffuse across wall (cell-wall)
Created by: kim.b
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