Life Science Chapter 4

Created by bwoolno 

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diffusion

the movement of particles from regions of higher density to regions of lower density

osmosis

diffusion of water through a selectively permeable membrane

passive transport

the movement of substances through a cell membrane without the use of energy by the cell

active transport

the movement of materials through a cell membrane using 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 the cell membrane

photosynthesis

the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce food and oxygen

cellular respiration

the process by which cells use oxygen to produce energy from food

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