Biology Lab Quiz on Enzymes

What effect does temperature and pH has on enzyme activity?

A chemical whose presence allows a reaction to occur much quicker and more easily than it would without it. increases the rate of a chemical reaction but is not used up in the reaction. can accelerate only the reaction that would ordinarily occur

biological catalysts that reduce "activation energy" needed for a chemical reaction to occur; proteins. can catalyze several thousand reactions in one second; present in small amounts and can have large effects

substances that are acted upon by enzymes

substances that result from the reaction

the area where the enzyme and and its substrate bind to one another by forming chemical bonds. The shapes of -these- and their substrate are complementary allowing a precise fit for a chemical reaction to take place

This breaks down, releasing both product and enzyme, which is now free to combine with another substrate

if the enzyme causes the breakdown of a substrate it's an example of ___ or a ____ reaction

enzymatic reactions that may combine two or more substrates into one product this is ____ or ___ reaction

to damage an enzyme or expose it to conditions outside of their normal range it is ___. its 3-dimensional structure is changed in such a way making it non-functional

the name of an enzyme (also called peroxidase) found in almost all tissues. catalyzes the breakdown of hydrogen peroxide (H2O2) into two water molecules and one molecule of O2. occurs slowly at room temperature without a catalyst and the reaction is the reason why H2O2 bottles have an expiration date

what three things can damage enzymes?