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Cells and Diffusion

TermDefinition
Nucleus It controls all activities of the cell; growth and reproduction
Cell membrane It allows certain molecules to go in or out of the cell. Molecules diffuse in or out of a cell. It is made up of 2 phospholipid layers.
Cell wall It supports and protects the cell; doesn't allow molecules in or out.
Chromosomes Proteins that contain DNA which has coded information for making molecules .
Rough Endoplasmic Reticulum It produces and stores proteins.
Smooth Endoplasmic Reticulm It produces and stores fats/oils.
Golgi Bodies It modifies and packages proteins from Rough ER with enzymes.
Ribosomes Helps rough ER make proteins and is attached to it.
Centroles It helps with cell division (Mitosis) and spindle
Mitochondria Converts sugar into energy for the cell
Cytoplasm The fluid in the cell that allow organelles to move around
Vacuole It stores water; minerals and vitamins. It is much bigger in plant cells.
Lysosomes It breaks down food, invading bacteria, and old damages organelles
Chloroplasts It uses sunlight to make its own food (photosynthesis)
Diffusion The movement of molecules from areas of high concentration to low concentration
Osmosis The movement of water molecules from high concentration of water to low concentration of water.
Permeable It allows any molecule to diffuse across the membrane.
Semi- permeable It allows certain molecules to diffuse across the membrane. (ex: cell membrane)
Non- permeable It allows no molecules to diffuse across membrane (Ex. cell wall)
Created by: shailaj24
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