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science

TermDefinition
passive transport the movement of substances through a cell membrane without using the cell's energy
diffusion the movement of substances from an area of higher concentration to an area of lower concentration
osmosis the diffusion of water molecules only through a membrane
facilitated diffusion when molecules pass through a cell membrane using special proteins called transport proteins
active transport the movement of substances through a cell membrane only by using the cell's energy
endocytosis the process during which a cell takes in a substance by surrounding it with the cell membrane
exocytosis the process during which a cell's vesicles release their contents outside the cell
cellular respiration a series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP
glycolysis a process by which glucose a sugar is broken down into smaller molecules
fermentation a reaction that eukaryotic and prokaryotic cells can use to obtain energy from food when oxygen levels are low
photosynthesis a series of chemical reactions that convert light energy water and CO2 into the food energy molecule glucose and give off oxygen
Created by: Joshua 123