AP Biology Enzyme FRQ Study Guide
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What are the characteristics of enzymes? - CORRECT ANSWER - Enzymes are reaction
specific, they each have a specific substrate, and they have a chemical fit between the active site
and substrate.
What are the functions of enzymes? - CORRECT ANSWER - Enzymes are biological
catalysis that facilitate chemical reaction and reduce activation energy.
What is the relationship between the energy of the reactants and the energy of the products? -
CORRECT ANSWER - The energy of the reactants is used to create the energy of the
products, which is re-used for the energy of the new reactants.
(REFER TO THE GRAPH) What is happening at letter b? - CORRECT ANSWER - At letter
B, the activation energy reaches its peak.
(REFER TO THE GRAPH) Which letter represents activation energy without the enzyme? -
CORRECT ANSWER - Letter D.
(REFER TO THE GRAPH) Which letter represents the activation energy with the enzyme? -
CORRECT ANSWER - Letter C.
What does letter E represent? - CORRECT ANSWER - Letter E represents the downfall of
energy creating the product energy.
What is the role of enzymes in biological systems? - CORRECT ANSWER - The role of
enzymes in biological systems are to reduce the amount of energy needed to begin a chemical
reaction.
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What are the characteristics of enzymes? - CORRECT ANSWER - Enzymes are reaction
specific, they each have a specific substrate, and they have a chemical fit between the active site
and substrate.
What are the functions of enzymes? - CORRECT ANSWER - Enzymes are biological
catalysis that facilitate chemical reaction and reduce activation energy.
What is the relationship between the energy of the reactants and the energy of the products? -
CORRECT ANSWER - The energy of the reactants is used to create the energy of the
products, which is re-used for the energy of the new reactants.
(REFER TO THE GRAPH) What is happening at letter b? - CORRECT ANSWER - At letter
B, the activation energy reaches its peak.
(REFER TO THE GRAPH) Which letter represents activation energy without the enzyme? -
CORRECT ANSWER - Letter D.
(REFER TO THE GRAPH) Which letter represents the activation energy with the enzyme? -
CORRECT ANSWER - Letter C.
What does letter E represent? - CORRECT ANSWER - Letter E represents the downfall of
energy creating the product energy.
What is the role of enzymes in biological systems? - CORRECT ANSWER - The role of
enzymes in biological systems are to reduce the amount of energy needed to begin a chemical
reaction.
