verall process that is called the Calvin-Benson cycle or the dark reactions of photosynthesis is own in the following figure: Input 3 CO₂, entering one per cycle Phase 1: Carbon fixation Rubisco SP GÓCáo RuBP 3: ration p $000-P G3P Calvin Cycle 10008 3-Phosphoglycerate SPOOOP 1,3-Bisphosphoglycerate 10-0-0-P. G3P Output G3P NADP MOP, NADPH Phase 2: Reduction Glucose and other organic compounds e enzyme RUBISCO is sometimes called the most important protein in the planet. Why is this so? What s this enzyme central for our own existence as an organism? hat process in the chloroplast is used to provide the ATP and NADPH that drive the Calvin Cycle? uppose that a chloroplast is supplied with both light and carbon dioxide. Subsequently, the light is kept on, e carbon dioxide supply is turned off. Using the diagram above, predict what will happen in this situation to vels of 3-phosphoglycerate and ribulose bisphosphate (RuBP), respectively.

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part  C

urgently

The overall process that is called the Calvin-Benson cycle or the dark reactions of photosynthesis is
shown in the following figure:
3 ADP
SP 00000P
RuBP
Phase 3:
Regeneration
of RuBP
Rubisco
Input 3 CO2, entering one per cycle
Phase 1: Carbon fixation
$000P
G3P
Calvin
Cycle
0908
3-Phosphoglycerate
SPOOOP
1,3-Bisphosphoglycerate
10-0-0-P
G3P
Output
6 ADP
908
G3P
NADP
OP,
NADPH
Phase 2:
Reduction
Glucose and
other organic
compounds
A. The enzyme RUBISCO is sometimes called the most important protein in the planet. Why is this so? What
makes this enzyme central for our own existence as an organism?
B. What process in the chloroplast is used to provide the ATP and NADPH that drive the Calvin Cycle?
C. Suppose that a chloroplast is supplied with both light and carbon dioxide. Subsequently, the light is kept on,
but the carbon dioxide supply is turned off. Using the diagram above, predict what will happen in this situation to
the levels of 3-phosphoglycerate and ribulose bisphosphate (RuBP), respectively.
Transcribed Image Text:The overall process that is called the Calvin-Benson cycle or the dark reactions of photosynthesis is shown in the following figure: 3 ADP SP 00000P RuBP Phase 3: Regeneration of RuBP Rubisco Input 3 CO2, entering one per cycle Phase 1: Carbon fixation $000P G3P Calvin Cycle 0908 3-Phosphoglycerate SPOOOP 1,3-Bisphosphoglycerate 10-0-0-P G3P Output 6 ADP 908 G3P NADP OP, NADPH Phase 2: Reduction Glucose and other organic compounds A. The enzyme RUBISCO is sometimes called the most important protein in the planet. Why is this so? What makes this enzyme central for our own existence as an organism? B. What process in the chloroplast is used to provide the ATP and NADPH that drive the Calvin Cycle? C. Suppose that a chloroplast is supplied with both light and carbon dioxide. Subsequently, the light is kept on, but the carbon dioxide supply is turned off. Using the diagram above, predict what will happen in this situation to the levels of 3-phosphoglycerate and ribulose bisphosphate (RuBP), respectively.
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