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Cells and Diffusion

cells and diffusion

TermDefinition
Nucleus Controls all activities of the cell
Cell Membrane allows certain molecules to diffuse in or out of a cell. Made up of 2 phosphorous layers interconnected
Cell Wall Supports and protects the cell. Does not allow anything in or out of the cell. Found in plants
Nucleolus Makes Ribosomes. Found in Nucleus
Chromosomes Proteins that contain DNA which has codon information for making molecules.
Rough Endoplasmic Reticulum (Rough ER) produces and stores proteins
Smooth Endoplasmic Reticulum (Smooth ER) produces and stores fats and oils
Golgi Bodies modifies and packages proteins from Rough ER with enzymes
Ribosomes helps Rough ER make proteins. Attached to Rough ER
Centrioles helps with mitosis. Spindle fibres come from here. Found in animal cells
Mitochondria converts sugar into energy for cell
Cytoplasm fluid in cell; allows organelles to move around
Vacuole stores water, minerals and vitamins. Bigger in plant cells.
Lysosomes breaks down: food, mediary bacteria, and old/damaged organelles. Found in animal cells
Chloroplasts photosynthesis, use sunlight to make it's own food. CO2 + H2O -> Sugar + O2. Found in plant cells
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 any molecules can cross molecule
Semi-Permeable Some molecules can cross membrane (animal cells)
Non-Permeable No molecules can cross (plant cells)
Units of life (smallest to largest) organelles - cells - tissues - organs - organ systems
Created by: CKChung
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