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Gas Exchange

Vocabulary about gas exchange.

TermDefinition
Gas exchange A chemical reaction where organisms trade one type of gas in the atmosphere for another. These trades help organisms create energy.
Photosynthesis A type of gas exchange where organisms use sunlight to turn water and carbon dioxide into sugar.
Cellular respiration A type of gas exchange where organisms turn sugar and oxygen into energy,
Reactant What goes into a chemical reaction. All reactants must be there for the reaction to happen.
Product What is made during a chemical reaction-- what is produced.
Water H2O
Carbon Dioxide CO2
Glucose sugar C6H12O6
Oxygen O2
Energy (ATP) The type of energy used by living things. Produced by cellular respiration.
Autotroph Organisms who get their sugar from photosynthesis
Heterotroph Organisms who get their sugar by eating things
Mitochondria The cell organelle that creates ATP out of sugar and oxygen
Chloroplast The cell organelle that does photosynthesis
Light Energy absorbed and stored during photosynthesis.
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