AP BIOLOGY UNIT 3: CELLULAR
ENERGETICS PRACTICE TEST
(MULTIPLE CHOICE)
Enzymes are often referred to as being "highly specific" (also referred to as enzyme
specificity), meaning...
a. Each enzyme found in the body is unique and there are no other enzymes of that
kind
b. The enzyme will only work in a specific environment
c. Only a specific substrate will bind to its active site
d. All substrates will bind to its active site except one type of substrate
e. Enzymes are found only in certain parts of the body - Correct Answers -C
In what aspect is the "lock and key" model incorrect?
a. It assumed the active site never changed
b. It assumed the active site changes when a substrate entered the active site
c. It assumed that enzymes only accepted one specific substrate
d. It assumed that enzymes accepted many different substrates
e. It assumed that the active site never change and that enzymes accepted many
different substrates - Correct Answers -D
Hydrolysis and cellular respiration are examples of what types of reactions?
a. Catabolic & Anabolic
b. Exergonic & Endergonic
c. Catabolic & Exergonic
d. Anabolic & Endergonic
e. Catabolic & Endergonic - Correct Answers -C
What types of reactions have a net use of energy?
a. Catabolic & Anabolic
b. Exergonic & Endergonic
c. Catabolic & Exergonic
d. Anabolic & Endergonic
e. Catabolic & Endergonic - Correct Answers -D
, What type of inhibitor binds to the active site?
a. Competitive
b. Non-competitive
c. Active
d. Substrate
e. Protein - Correct Answers -A
What type of inhibitor lowers the maximum rate of reaction?
a. Competitive
b. Non-competitive
c. Active
d. Substrate
e. Protein - Correct Answers –B
RuBisCo is an enzyme that...
a. Catalyzes the production of hexose sugar molecules
b. Catalyzes the production of ribulose bisphosphate
c. Catalyzes the production of ATP
d. Is used in the light-dependent to catalyze the bonding of CO2 to ribulose
bisphosphate
e. Is used in the Calvin cycle to catalyze the bonding of CO2 to ribulose bisphosphate -
Correct Answers -E
Chloroplasts' internal structure) maximizes the surface area available for light
absorption in order to...
a. Widen the cell size, producing turgor
b. Elongating the cell, producing long structural cells that make the plant stand upright
c. Produce the most amount of O2
d. Produce the most amount of sugar
e. Use the most amount of CO2 - Correct Answers -D
What is stroma?
a. Outer membrane of chloroplast
b. Inner membrane of chloroplast
c. Stacks of thylakoid membranes that contain chlorophyll
d. Liquid interior of the chloroplast
e. Sheet like membrane that connect stacks of thylakoids to each other - Correct
Answers -D
How does ADP turn into ATP?
ENERGETICS PRACTICE TEST
(MULTIPLE CHOICE)
Enzymes are often referred to as being "highly specific" (also referred to as enzyme
specificity), meaning...
a. Each enzyme found in the body is unique and there are no other enzymes of that
kind
b. The enzyme will only work in a specific environment
c. Only a specific substrate will bind to its active site
d. All substrates will bind to its active site except one type of substrate
e. Enzymes are found only in certain parts of the body - Correct Answers -C
In what aspect is the "lock and key" model incorrect?
a. It assumed the active site never changed
b. It assumed the active site changes when a substrate entered the active site
c. It assumed that enzymes only accepted one specific substrate
d. It assumed that enzymes accepted many different substrates
e. It assumed that the active site never change and that enzymes accepted many
different substrates - Correct Answers -D
Hydrolysis and cellular respiration are examples of what types of reactions?
a. Catabolic & Anabolic
b. Exergonic & Endergonic
c. Catabolic & Exergonic
d. Anabolic & Endergonic
e. Catabolic & Endergonic - Correct Answers -C
What types of reactions have a net use of energy?
a. Catabolic & Anabolic
b. Exergonic & Endergonic
c. Catabolic & Exergonic
d. Anabolic & Endergonic
e. Catabolic & Endergonic - Correct Answers -D
, What type of inhibitor binds to the active site?
a. Competitive
b. Non-competitive
c. Active
d. Substrate
e. Protein - Correct Answers -A
What type of inhibitor lowers the maximum rate of reaction?
a. Competitive
b. Non-competitive
c. Active
d. Substrate
e. Protein - Correct Answers –B
RuBisCo is an enzyme that...
a. Catalyzes the production of hexose sugar molecules
b. Catalyzes the production of ribulose bisphosphate
c. Catalyzes the production of ATP
d. Is used in the light-dependent to catalyze the bonding of CO2 to ribulose
bisphosphate
e. Is used in the Calvin cycle to catalyze the bonding of CO2 to ribulose bisphosphate -
Correct Answers -E
Chloroplasts' internal structure) maximizes the surface area available for light
absorption in order to...
a. Widen the cell size, producing turgor
b. Elongating the cell, producing long structural cells that make the plant stand upright
c. Produce the most amount of O2
d. Produce the most amount of sugar
e. Use the most amount of CO2 - Correct Answers -D
What is stroma?
a. Outer membrane of chloroplast
b. Inner membrane of chloroplast
c. Stacks of thylakoid membranes that contain chlorophyll
d. Liquid interior of the chloroplast
e. Sheet like membrane that connect stacks of thylakoids to each other - Correct
Answers -D
How does ADP turn into ATP?
