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Cells & Diffusion

Part A of the Study Stack Homework Sheet

TermDefinition
Nucleus Controls all activities of the cell --> Growth and reproduction Exists in both plant and animal cells
Chromosomes Proteins that contain DNA that has coded information for making molecules. Exists in both plant and animal cells
Smooth Endoplasmic Reticulum Produces and stores oils and fats Exists in both plant and animal cells
Rough Endoplasmic Reticulum Produces and stores proteins Exists in both plant and animal cells
Ribosomes Helps the Rough ER make proteins --> attached to the Rough ER Exists in both plant and animal cells
Cell Membrane Allows certain molecules to diffuse in or out of the cell --> made up of a 2 phosphorous layer interconnected Exists in both plant and animal cells
Golgi Bodies Packages and modifies proteins from the Rough ER with the help of enzymes Exists in both plant and animal cells
Vacuoles Stores water, minerals, and vitamins --> Bigger in plants Exists in both plant and animal cells
Lysosomes Breaks down food, invading bacteria, or old/damaged organelles Only in animal cells
Mitochondria Converts sugar into energy Exists in both plant and animal cells
Centrioles Spindle fibers come out of the centrioles, helps with mitosis Only in animal cells
Cytoplasm The fluid in the cell --> helps move organelles around Exists in both plant and animal cells
Cell Wall Supports and protects the cell --> does not let any molecules in or out Exists in only plant cells
Chloroplasts Uses sunlight to make its own food --> helps with photosynthesis (CO2 + H20 + light ---> sugar + O2) Only in plant cells
Diffusion Movement of molecules from a high concentration to a low concentration.
Permeable Allows any molecules to diffuse across the membrane
Semi-Permeable Allows some molecules to diffuse across the membrane Ex: Cell membrane
Non-Permeable Allows no molecules to diffuse across the membrane Ex: Cell wall
Osmosis Movement of water molecules from a high concentration of water to a low concentration of water
Created by: KCY
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