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Science Vocab

diffusion: the movement of particles from regions of higher density to regions of lower density.
osmosis: the diffusion of water through a semipermeable membrane
passive transport: the movement of substances across a cell membrane without the use of energy by the cell.
active transport: the movement of substances across the cell membrane that requires the cell to use energy.
endocytosis: the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
exocytosis: the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with cell membrane.
photosynthesis: the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.
cellular respiration: the process by which cells use oxygen to produce energy from food.
fermentation: the breakdown of food without the use of oxygen.
Created by: sandoze