photosynthesis.txt

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Author:
pklappa
ID:
187
Filename:
photosynthesis.txt
Updated:
2009-10-11 15:24:44
Tags:
photosynthesis
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Description:
biochemistry of photosynthesis
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  1. What is the CO2 acceptor in a C3 plant?
    Ribulose 1,5 bisphosphate
  2. What is the primary CO2 acceptor in a C3 plant?
    Ribulose 1,5 bisphosphate
  3. What is the primary CO2 acceptor in a C4 plant?
    Phosphoenol pyruvate
  4. What is the name of the enzyme that catalyses incorporporation of CO2 into Ribulose 1,5 bisphosphate
    Rubisco
  5. Which cell type in a C plant contains Rubisco?
    Bundle sheath cells
  6. Which photosystem contains the water-splitting activity?
    Photosystem II
  7. Which cell type in a C4 plant contains photosystem II?
    Mesophyll cells
  8. How many moles NADPH and ATP are required for the fixation of 1 mol CO2 in a C3 plant?
    2 mol NADPH and 3 mol ATP
  9. How many moles of NADPH and ATP are required for the fixation of 1 mol CO2 in a C4 plant?
    2 moles NADPH and 5 moles ATP
  10. What is the function of cyclic photophosphorylation?
    To generate additional ATP
  11. Name the two compounds photosystem I can transfer electrons to.
    NADPH-reductase and Ferredoxin
  12. What is the principal difference between a C4 and a CAM plant?
    C4 plant - spatial separation between energy production(light reaction) nd Calvin cycle (dark reaction). In a CAM plant both processes are separated in time.
  13. What is the difference between the Calvin cycle of a C3 and a C4 plant?
    No principal difference in biochemistry. In a C4 plant the Calvin cycle is carried out only in bundle sheath cells and thus separated from the light reaction in Mesophyll cells.

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