AP BIOLOGY UNIT 3 CELLULAR
ENERGETICS PRACTICE TEST
(MULTIPLE CHOICE) QUESTIONS AND
ANSWERS
Why does NADP+ combine with a H+ ion to form NADPH?
a. Carries H+ to the Calvin Cycle
b. Carries CO2 out of the cell
c. Carries O2 into the cell
d. Carries H+ out of the cell
e. Carries H+ into the cell - ANSWER-A
Why won't the light-independent reactions work in the dark after an extended period
of no light?
a. The light-dependent reactions use the end products of the light-independent
reactions
b. The light-independent reactions use the end products of the light-dependent
reactions
c. The light-independent reactions occur in the middle of the light-dependent
reactions
d. The light-dependent reactions occur in the middle of the light-independent
reactions
e. Light-independent reactions will always work regardless of the availability of light -
ANSWER-B
What is another name for the Calvin Cycle?
a. Light-dependent reactions
b. Light-independent reactions
c. Non-cyclic Phopsphorylation
d. Cyclic Phopsphorylation
e. Photophosphorylation - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-
D
36. What is grana?
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 - ANSWER-
C
38. What is a waste product of photosynthesis?
a. CO2
b. H2O
c. C6H1206
d. O2
e. Light Energy - ANSWER-D
39. What is a product of photosynthesis?
a. CO2
b. H2O
c. C6H1206
d. O2
e. Light Energy - ANSWER-C
Which of the following is not a reactant or a product of photosynthesis?
a. CO2
b. H2O
c. C6H1206
d. O2
ENERGETICS PRACTICE TEST
(MULTIPLE CHOICE) QUESTIONS AND
ANSWERS
Why does NADP+ combine with a H+ ion to form NADPH?
a. Carries H+ to the Calvin Cycle
b. Carries CO2 out of the cell
c. Carries O2 into the cell
d. Carries H+ out of the cell
e. Carries H+ into the cell - ANSWER-A
Why won't the light-independent reactions work in the dark after an extended period
of no light?
a. The light-dependent reactions use the end products of the light-independent
reactions
b. The light-independent reactions use the end products of the light-dependent
reactions
c. The light-independent reactions occur in the middle of the light-dependent
reactions
d. The light-dependent reactions occur in the middle of the light-independent
reactions
e. Light-independent reactions will always work regardless of the availability of light -
ANSWER-B
What is another name for the Calvin Cycle?
a. Light-dependent reactions
b. Light-independent reactions
c. Non-cyclic Phopsphorylation
d. Cyclic Phopsphorylation
e. Photophosphorylation - ANSWER-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 - ANSWER-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 - ANSWER-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 - ANSWER-
D
36. What is grana?
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 - ANSWER-
C
38. What is a waste product of photosynthesis?
a. CO2
b. H2O
c. C6H1206
d. O2
e. Light Energy - ANSWER-D
39. What is a product of photosynthesis?
a. CO2
b. H2O
c. C6H1206
d. O2
e. Light Energy - ANSWER-C
Which of the following is not a reactant or a product of photosynthesis?
a. CO2
b. H2O
c. C6H1206
d. O2
