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BZ 440 EXAM 2 Questions and Correct
Answers/ Latest Update / Already Graded
Carbon enters the plant in the form of...
Ans: CO2
Carbon is fixed by the enzyme...
Ans: Rubisco
Carbon is coupled to_____ to form ______
Ans: RuBP, G3P (C3 sugar)
What is the Calvin Cycle and where does it take place?
Ans: Carbon is fixed by Rubisco and coupled to RuBP to form
G3P. This takes place in the chloroplast stroma.
Describe chemiosmosis:
Ans: Protons are pumped over the membrane, creating a
proton gradient. The protons flow back to the stroma via an
ATP synthase, creating ATP
All rights reserved © 2025/ 2026 |
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Photosythnesis is part of which branch of metabolism?
Ans: Anabolism
What is the overall reaction of photosynthesis?
Ans: CO2+H2O +Light => CH2O+O2
Photosynthesis is a redox reaction, what is reduced? What is oxidized?
Ans: CO2 is reduced to sugars and H2O is oxidized to O2
What molecule is used to shuttle electrons? (usually involved in
anabolic processes)
Ans: NADP+
What are the two parts of photosynthesis?
Ans: Light Reactions and Calvin Cycle
What molecules are used by Light Reactions? Calvin Cycle?
Ans: ADP, NADP+. ATP, NADPH.
All rights reserved © 2025/ 2026 |
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Summarize the process that takes place in Light Reactions.
Ans: Light energy is captured by pigments. Part of this energy
is stored in ATP, part is used to split H2O into O2, H+, and e -.
Summarize the process that takes place in the Calvin Cycle.
Ans: CO2 is fixed by rubisco. The CO2 is accepted by RuBP.
Sugars are produced (3-CO2 in, 1-G3P out). ATP and NADPH are
used in this process.
What are the 3 phases of the Calvin Cycle?
Ans: 1. CO2 fixation
2. Reduction
3. RuBP generation
Chlorophylls (a and b)
Ans: Main pigments, essential for light capture.
Carotenoids (carotenes, xanthophylls)
Ans: Essential in protection of plants from high intensity light
radiation, secondary role in light capture.
All rights reserved © 2025/ 2026 |
BZ 440 EXAM 2 Questions and Correct
Answers/ Latest Update / Already Graded
Carbon enters the plant in the form of...
Ans: CO2
Carbon is fixed by the enzyme...
Ans: Rubisco
Carbon is coupled to_____ to form ______
Ans: RuBP, G3P (C3 sugar)
What is the Calvin Cycle and where does it take place?
Ans: Carbon is fixed by Rubisco and coupled to RuBP to form
G3P. This takes place in the chloroplast stroma.
Describe chemiosmosis:
Ans: Protons are pumped over the membrane, creating a
proton gradient. The protons flow back to the stroma via an
ATP synthase, creating ATP
All rights reserved © 2025/ 2026 |
, Page |2
Photosythnesis is part of which branch of metabolism?
Ans: Anabolism
What is the overall reaction of photosynthesis?
Ans: CO2+H2O +Light => CH2O+O2
Photosynthesis is a redox reaction, what is reduced? What is oxidized?
Ans: CO2 is reduced to sugars and H2O is oxidized to O2
What molecule is used to shuttle electrons? (usually involved in
anabolic processes)
Ans: NADP+
What are the two parts of photosynthesis?
Ans: Light Reactions and Calvin Cycle
What molecules are used by Light Reactions? Calvin Cycle?
Ans: ADP, NADP+. ATP, NADPH.
All rights reserved © 2025/ 2026 |
, Page |3
Summarize the process that takes place in Light Reactions.
Ans: Light energy is captured by pigments. Part of this energy
is stored in ATP, part is used to split H2O into O2, H+, and e -.
Summarize the process that takes place in the Calvin Cycle.
Ans: CO2 is fixed by rubisco. The CO2 is accepted by RuBP.
Sugars are produced (3-CO2 in, 1-G3P out). ATP and NADPH are
used in this process.
What are the 3 phases of the Calvin Cycle?
Ans: 1. CO2 fixation
2. Reduction
3. RuBP generation
Chlorophylls (a and b)
Ans: Main pigments, essential for light capture.
Carotenoids (carotenes, xanthophylls)
Ans: Essential in protection of plants from high intensity light
radiation, secondary role in light capture.
All rights reserved © 2025/ 2026 |
