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Cells and Diffusion

Part A

TermDefinition
Nucleus Controls all activities of the cell; growth and reproduction Found in plant and animal cells
Cell Membrane Allows certain molecules to go in or out of the cell Molecules diffuse in or out of a cell Made up of phosphorus layers interconnected Found in plant and animal cells
Cell Wall Supports and protects the cell, doesn't let molecules in or out Found in plant cells
Chromosomes Proteins that contain DNA which has coded information making molecules Found in plant and animal cells
Rough Endoplasmic Reticulum Produces and stores protein Found in plant and animal cells
Smooth Endoplasmic Reticulum Produces and stores fats and oils Found in plant and animal cells
Golgi Bodies Modifies and packages proteins from the rough ER with enzymes Found in plant and animal cells
Ribosomes Helps Rough Er make proteins, attached to rough ER Found in plant and animal cells
Centrioles Produces spindle fibres, helps with cell division (mitosis) Found in animal cells
Mitochondria Converts sugar into energy through cellular respiration Found in plant and animal cells
Cytoplasm Fluid in the cells, allows organelles to move around Found in plant and animal cells
Vacuole Stores water, minerals, vitamins Found in plant and animal cells , much bigger in plant cells
Lysosomes Breaks down food, invading bacteria, old/damaged cells Found in animal cells
Chloroplasts Uses sunlight to make its own food through photosynthesis Found in plant cells
Diffusion Movement of molecules from areas of high concentration to low concentration
Permeable Allows any molecules to diffuse across the membrane
Semi-permeable Allows certain molecules to diffuse across the membrane (cell membrane)
Non-permeable Allows no molecules to diffuse across the membrane (cell wall)
Osmosis Movement of water from high concentration of water to low concentration of water Higher concentration outside the cell to lower concentration inside the cell
Created by: Rohan Shah
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