AP BIO - UNIT 3 ENZYME EXAM
QUESTIONS WITH COMPLETE
ANSWERS
causes change in the activity and shape of the active site
allosteric site - ANSWER-A site on an enzyme other than the active site, to which a
specific substance binds, thereby changing the shape and activity of the enzyme
Competitive and non-competitive inhibition - ANSWER-both act to reduce enzyme
activity by preventing substrate binding
competitive inhibition process - ANSWER-inhibitor molecule binds to the active site
blocking the real substrate from binding
non-competitive inhibition - ANSWER-inhibitor molecule binds to the allosteric site
altering the shape of the active site and preventing substrate binding
negative feedback inhibition - ANSWER-accumulation of end product slows the
process that produces that amount -stop production
cold temperature - ANSWER-does NOT denature the enzyme
enzymes - ANSWER-proteins that act as biological catalysts
induced fit - ANSWER-Caused by entry of the substrate
the change in shape of the active site of an enzyme so that it binds more snugly to
the substrate.
Exergonic - ANSWER-Chemical reactions that release energy
Endergonic - ANSWER-A chemical reaction that requires the input of energy in order
to proceed.
Law of Entropy (Second Law of Thermodynamics) - ANSWER-every energy transfer
or transformation INCREASES the entropy or disorder of the universe
enzyme concentration - ANSWER-The greater concentration of the enzyme the
greater the rate of reaction
substrate concentration - ANSWER-enzyme activity increases with this; more
collision between substrate molecules and the enzyme
Properties of enzymes - ANSWER-- Catalyst,
QUESTIONS WITH COMPLETE
ANSWERS
causes change in the activity and shape of the active site
allosteric site - ANSWER-A site on an enzyme other than the active site, to which a
specific substance binds, thereby changing the shape and activity of the enzyme
Competitive and non-competitive inhibition - ANSWER-both act to reduce enzyme
activity by preventing substrate binding
competitive inhibition process - ANSWER-inhibitor molecule binds to the active site
blocking the real substrate from binding
non-competitive inhibition - ANSWER-inhibitor molecule binds to the allosteric site
altering the shape of the active site and preventing substrate binding
negative feedback inhibition - ANSWER-accumulation of end product slows the
process that produces that amount -stop production
cold temperature - ANSWER-does NOT denature the enzyme
enzymes - ANSWER-proteins that act as biological catalysts
induced fit - ANSWER-Caused by entry of the substrate
the change in shape of the active site of an enzyme so that it binds more snugly to
the substrate.
Exergonic - ANSWER-Chemical reactions that release energy
Endergonic - ANSWER-A chemical reaction that requires the input of energy in order
to proceed.
Law of Entropy (Second Law of Thermodynamics) - ANSWER-every energy transfer
or transformation INCREASES the entropy or disorder of the universe
enzyme concentration - ANSWER-The greater concentration of the enzyme the
greater the rate of reaction
substrate concentration - ANSWER-enzyme activity increases with this; more
collision between substrate molecules and the enzyme
Properties of enzymes - ANSWER-- Catalyst,
