TandraCicatello
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4. Which pathway represents the flow of electrons during photosynthesis? (1 point) A.) H2O > Photosystem I > Photosystem II B.)O2 > ADP > Calvin Cycle C.)Photosystem I >Calvin cycle > NADP D.H20 > NADP > Calvin cycle 5. Which process does NOT release energy from glucose? (1 point) A.)glycolysis B.)photosynthesis C.)fermentation D.)cellular respiration

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4. Which pathway represents the flow of electrons during photosynthesis?

I think the correct answer from the choices listed is option D, H20 > NADP > Calvin cycle.

5. Which process does NOT release energy from glucose?

I think the correct answer is option B. The process which does not release energy from glucose is photosynthesis.

Answer:

4. The correct pathway for the flow of electron during photosynthesis is mentioned in option D. [tex]H_{2}O[/tex] > NADP > Calvin cycle.

  • Electron is first provided to the photo-system II by the phtolysis of water.
  • Then it is passed to photo-system I with the help of plastoquinone (PQ) and cytochrome [tex]b_{6}f[/tex].
  • Finally, electron from the photo-system II is used to reduce NADP to NADPH.
  • NADPH and ATP are used in light independent phase or Calvin cycle to synthesize carbohydrate from carbon dioxide.

5. The correct answer is B.) photosynthesis.

  • Photosynthesis is the process by which green plants synthesize glucose or carbohydrate from carbon dioxide and water in presence of sunlight and chlorophyll.
  • In light independent phase of photosynthesis, it requires ATP and NADPH  in order to synthesize food.
  • Lastly, oxidation or breaking down of glucose releases energy and photosynthesis is a anabolic process instead of catabolic one.  
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