AP BIO ENZYME STRUCTURE EXAM
QUESTIONS WITH VERIFIED
ANSWERS
What is energy coupling? - ANSWER-the use of energy released from an exergonic
reaction to drive an endergonic reaction
What is the second law of thermodynamics? - ANSWER-Every energy transfer or
transformation increases the entropy of the universe.
What is the role of enzymes? - ANSWER-Enzymes speed up chemical reactions that
take place in cells
How is enzyme structure related to enzyme function - ANSWER-Most enzymes are
proteins and therefore their function is specific to their structure. That is why the
structure of the enzyme is so important. The enzyme binds with the appropriate
substrate only in the correct alignment and orientation to connect the molecules.
What determines whether a substrate can react with an enzyme - ANSWER-
Environmental conditions can affect an enzyme's active site and, therefore, the rate
at which a chemical reaction can proceed. If the enzyme changes shape, the active
site may no longer bind to the appropriate substrate and the rate of reaction will
decrease.
what happens to an enzyme after a reaction - ANSWER-The enzyme will always
return to its original state at the completion of the reaction. One of the important
properties of enzymes is that they remain ultimately unchanged by the reactions they
catalyze. After an enzyme is done catalyzing a reaction, it releases its products
(substrates).
What is a substrate? - ANSWER-the substance on which an enzyme acts
How do enzymes speed up chemical reactions? - ANSWER-by lowering the
activation energy
What is activation energy? - ANSWER-energy needed to start a chemical reaction
What is biochemistry? - ANSWER-the study of substances and processes occurring
in living things
What is a catalyst? - ANSWER-A substance which increases the speed of a
reaction, without being changed or used up in the reaction
What is the enzyme-substrate complex? - ANSWER-binding of the enzyme and the
substrate, which then speeds up the chemical reaction by lowering the activation
energy
QUESTIONS WITH VERIFIED
ANSWERS
What is energy coupling? - ANSWER-the use of energy released from an exergonic
reaction to drive an endergonic reaction
What is the second law of thermodynamics? - ANSWER-Every energy transfer or
transformation increases the entropy of the universe.
What is the role of enzymes? - ANSWER-Enzymes speed up chemical reactions that
take place in cells
How is enzyme structure related to enzyme function - ANSWER-Most enzymes are
proteins and therefore their function is specific to their structure. That is why the
structure of the enzyme is so important. The enzyme binds with the appropriate
substrate only in the correct alignment and orientation to connect the molecules.
What determines whether a substrate can react with an enzyme - ANSWER-
Environmental conditions can affect an enzyme's active site and, therefore, the rate
at which a chemical reaction can proceed. If the enzyme changes shape, the active
site may no longer bind to the appropriate substrate and the rate of reaction will
decrease.
what happens to an enzyme after a reaction - ANSWER-The enzyme will always
return to its original state at the completion of the reaction. One of the important
properties of enzymes is that they remain ultimately unchanged by the reactions they
catalyze. After an enzyme is done catalyzing a reaction, it releases its products
(substrates).
What is a substrate? - ANSWER-the substance on which an enzyme acts
How do enzymes speed up chemical reactions? - ANSWER-by lowering the
activation energy
What is activation energy? - ANSWER-energy needed to start a chemical reaction
What is biochemistry? - ANSWER-the study of substances and processes occurring
in living things
What is a catalyst? - ANSWER-A substance which increases the speed of a
reaction, without being changed or used up in the reaction
What is the enzyme-substrate complex? - ANSWER-binding of the enzyme and the
substrate, which then speeds up the chemical reaction by lowering the activation
energy
