Biology 1201 Exam 3 Test Bank | Complete Questions
with Correct Answers | Latest 2026 Update
Which of these equations best summarizes photosynthesis?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
6 CO2 + 6 O2 → C6H12O6 + 6 H2O
C6H12O6 + 6 O2 → 6 CO2 + 12 H2O
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy
H2O → 2 H+ + 1/2 O2 + 2e- - CORRECT ANSWER -6 CO2 + 6 H2O → C6H12O6 + 6 O2
The light reactions of photosynthesis use _____ and produce _____. - CORRECT ANSWER -
water...NADPH
Which term describes ATP production resulting from the capture of light energy by chlorophyll?
- CORRECT ANSWER -Photophosphorylation
True or false? The chemiosmotic hypothesis states that the synthesis of ATP generates a proton
gradient that leads to electron flow through an electron transport chain. - CORRECT ANSWER -
False
According to the chemiosmotic hypothesis, what provides the energy that directly drives ATP
synthesis? - CORRECT ANSWER -Proton Gradient
Which of the following particles can pass through the ATP synthase channel?
ADP
Protons
Inorganic phosphate
ATP - CORRECT ANSWER -Protons
,True or false? The region of ATP synthase that catalyzes the production of ATP from ADP and
inorganic phosphate spans the chloroplast membrane. - CORRECT ANSWER -False
Chloroplast membrane vesicles are equilibrated in a simple solution of pH 5 . The solution is
then adjusted to pH 8 . Which of the following conclusions can be drawn from these
experimental conditions?
Protons will not diffuse toward the outside of the vesicles.
The change in the solution's pH results in a gradient across the chloroplast membranes such
that there is a lower concentration of protons inside the vesicles and a higher concentration
outside.
ATP will be produced because the proton gradient favors proton movement through the ATP
synthase channels.
ATP will not be produced because there is no ADP and inorganic phosphate in the solution. -
CORRECT ANSWER -ATP will not be produced because there is no ADP and inorganic phosphate
in the solution.
Which process produces oxygen?
Photosynthesis
Cellular respiration - CORRECT ANSWER -Photosynthesis
Which set of reactions uses H2O and produces O2?
The light-dependent reactions
The light-independent reactions - CORRECT ANSWER -The light-dependent reactions
What is the importance of the light-independent reactions in terms of carbon flow in the
biosphere? - CORRECT ANSWER -The light-independent reactions turn CO2, a gas, into usable
carbon in the form of sugars.
, True or false? The light-dependent reactions of photosynthesis use water and produce oxygen. -
CORRECT ANSWER -True
Which of the following molecules is the primary product of photosystem I?
Oxygen
NADPH
ATP
Carbon dioxide - CORRECT ANSWER -NADPH
What is the biological significance of the light-independent reactions of photosynthesis? -
CORRECT ANSWER -They convert carbon dioxide to sugar.
Which of the following statements best describes the relationship between the light-dependent
and light-independent reactions of photosynthesis?
The light-independent reactions release energy, and the light-dependent reactions require
energy.
The light-dependent reactions produce ATP and NADPH, which are then used by the light-
independent reactions.
The light-dependent reactions pass electrons through an electron transport chain to the light-
independent reactions.
The light-dependent reactions produce carbon dioxide, which is then used by the light-
independent reactions. - CORRECT ANSWER -The light-dependent reactions produce ATP and
NADPH, which are then used by the light-independent reactions
Which of the following reactions ensures that the Calvin cycle can make a continuous supply of
glucose?
Regneration of RuBP
Production of 3-phosphoglycerate
Production of G3P
with Correct Answers | Latest 2026 Update
Which of these equations best summarizes photosynthesis?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
6 CO2 + 6 O2 → C6H12O6 + 6 H2O
C6H12O6 + 6 O2 → 6 CO2 + 12 H2O
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy
H2O → 2 H+ + 1/2 O2 + 2e- - CORRECT ANSWER -6 CO2 + 6 H2O → C6H12O6 + 6 O2
The light reactions of photosynthesis use _____ and produce _____. - CORRECT ANSWER -
water...NADPH
Which term describes ATP production resulting from the capture of light energy by chlorophyll?
- CORRECT ANSWER -Photophosphorylation
True or false? The chemiosmotic hypothesis states that the synthesis of ATP generates a proton
gradient that leads to electron flow through an electron transport chain. - CORRECT ANSWER -
False
According to the chemiosmotic hypothesis, what provides the energy that directly drives ATP
synthesis? - CORRECT ANSWER -Proton Gradient
Which of the following particles can pass through the ATP synthase channel?
ADP
Protons
Inorganic phosphate
ATP - CORRECT ANSWER -Protons
,True or false? The region of ATP synthase that catalyzes the production of ATP from ADP and
inorganic phosphate spans the chloroplast membrane. - CORRECT ANSWER -False
Chloroplast membrane vesicles are equilibrated in a simple solution of pH 5 . The solution is
then adjusted to pH 8 . Which of the following conclusions can be drawn from these
experimental conditions?
Protons will not diffuse toward the outside of the vesicles.
The change in the solution's pH results in a gradient across the chloroplast membranes such
that there is a lower concentration of protons inside the vesicles and a higher concentration
outside.
ATP will be produced because the proton gradient favors proton movement through the ATP
synthase channels.
ATP will not be produced because there is no ADP and inorganic phosphate in the solution. -
CORRECT ANSWER -ATP will not be produced because there is no ADP and inorganic phosphate
in the solution.
Which process produces oxygen?
Photosynthesis
Cellular respiration - CORRECT ANSWER -Photosynthesis
Which set of reactions uses H2O and produces O2?
The light-dependent reactions
The light-independent reactions - CORRECT ANSWER -The light-dependent reactions
What is the importance of the light-independent reactions in terms of carbon flow in the
biosphere? - CORRECT ANSWER -The light-independent reactions turn CO2, a gas, into usable
carbon in the form of sugars.
, True or false? The light-dependent reactions of photosynthesis use water and produce oxygen. -
CORRECT ANSWER -True
Which of the following molecules is the primary product of photosystem I?
Oxygen
NADPH
ATP
Carbon dioxide - CORRECT ANSWER -NADPH
What is the biological significance of the light-independent reactions of photosynthesis? -
CORRECT ANSWER -They convert carbon dioxide to sugar.
Which of the following statements best describes the relationship between the light-dependent
and light-independent reactions of photosynthesis?
The light-independent reactions release energy, and the light-dependent reactions require
energy.
The light-dependent reactions produce ATP and NADPH, which are then used by the light-
independent reactions.
The light-dependent reactions pass electrons through an electron transport chain to the light-
independent reactions.
The light-dependent reactions produce carbon dioxide, which is then used by the light-
independent reactions. - CORRECT ANSWER -The light-dependent reactions produce ATP and
NADPH, which are then used by the light-independent reactions
Which of the following reactions ensures that the Calvin cycle can make a continuous supply of
glucose?
Regneration of RuBP
Production of 3-phosphoglycerate
Production of G3P
