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Catalysts & Enzymes
Terms in this set (19)
A substance that speeds up a chemical reaction without being "used up" in the reaction.
A biological catalyst; specialized proteins that speed up chemical reactions.
The amount of energy that reactants must absorb before a chemical reaction will start.
The site on an enzyme that attaches to a substrate.
The substance that an enzyme acts upon.
Metal ions or organic compounds that help enzymes.
Substances that block an enzyme's activity.
An inhibitor that takes the place of a substrate in the active site.
An inhibitor that alters an enzyme's function by changing its shape.
A process that changes one set of chemicals into another set of chemicals (p. 49).
Term used to describe a reaction that will occur without additional energy (p. 50).
Element or compound that enters into a chemical reaction.
A chemical substance formed as a result of a chemical reaction.
lock and key
Model of enzyme activity that explains how a particular enzyme will only fit with one particular type of substrate.
Breaking down complex molecules by the chemical addition of water.
A change in the shape of a protein (such as an enzyme) that can be caused by changes in temperature or pH (among other things).
law of conservation of mass
States that atoms are neither created nor destroyed in a chemical reaction.
A solution that can be used as a starch indicator. Turns from amber color to dark purple/black in the presence of starch.
Turn pink in a base. Stays colorless in an acid or neutral.
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