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A. What are the key features of the light reactions and Calvin cycle? Where do they occur in the chloroplast?

B. Starting with Photosystem II (PSII), describe how light is absorbed and how chloroplasts make ATP and NADPH.

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Nelly Stracke
Nelly StrackeLv2
28 Sep 2019

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Photosynthesis (Ch 8)

  • List the locations of the light reactions & the Calvincycle within the chloroplast and identify location on adiagram
  • Use the absorption spectrum of a pigment to identifywavelengths absorbed and reflected by that pigment
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  • ATP production using energy from an electron transportchain
  • List the products of the light reactions
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  • Compare & contrast electron transport and ATP synthesisbetween cellular respiration and photosynthesis

1. A) Describe the path one a pair of electrons, during the light reactions, starting with the electron donor molecule (water) until they are given to NADPH. B) What is the purpose of the electron transport from Photosystem II to Photosystem I? C) What is the final purpose of those electrons, where does NADPH take them to?

8. What occurs in a redox reaction? In photosynthesis, which molecules are oxidized (loss of electrons)? Which molecules are reduced (gain of electrons)? 9. What are the two stages of photosynthesis? 10. Why are plants green? What are the light-absorbing pigments found in chloroplasts? Which visible wavelengths of the electromagnetic spectrum are absorbed by these pigments? 11. What is a photosystem? Where are photosystems found in the chloroplast? What happens when light is absorbed by a photosystem?

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