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biology notes-ch2

chemisrty of life

QuestionAnswer
what is the def. of chemical reactions? process that changes or traqnsforms one set of chemicals into another
chemical___________ always involve __________ in the chemical bonds that join atoms in compounds. reactions and changes
________ is what goes into (enters) a chemical reaction. reactants
_______ is what comes out (exits) of a chemical reaction. products
_________ arrow CO2+H2O arrow H2CO3 arrow _________ H2Co3 and H2CO3
mass and energy are always _______. conserved
occur in all living __________. organisms
Energy is either _______ or ________ in a chemical _______. released, absorbed, and bonds
because energy and matter is ________ all organisms have to have a source of energy. conserved
________ through photosynthesis trap energy from the sun plants
Created by: kelseyrenee
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