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Photosynthesis review !!
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Photosynthesis review !!


here's a little review thing for you to study with! :) it doesnt have everything but its a good start

here's a little review thing for you to study with! :) it doesnt have everything but its a good start

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  • 1. Photosynthesis Review Honors Biology
  • 2. Organisms that can synthesize their own food from inorganic materials are called_____. Autotrophs
  • 3. All ______ rely on autotrophs for food, since autotrophs are the producers of the food web. Heterotrophs
  • 4. The electromagnetic spectrum ranges from gamma radiation to _______ waves. Radio
  • 5. On the visible spectrum, energy content of light is greatest for ______. Violet light
  • 6. What two things must go into the light reactions? Water, Light
  • 7. The color _____ has the shortest wavelength. Violet
  • 8. The color _____ has the lowest energy. Red
  • 9. Which colors are most useful in photosynthesis? Red, violet, and blue
  • 10. What type of wavelengths do high-energy photons have? Short wavelengths
  • 11. Where on the electromagnetic spectrum is visible light found? In a small portion in the middle of the spectrum. Ranging from about 400 nm- 750 nm
  • 12. Which of these phosphorylates ADP to make ATP? What is it called? E- ATP Synthase
  • 13. _____ releases energy that is used to create the H+ gradient in the thylakoid. What is it called? B- Electron transport chain
  • 14. Water is split into oxygen and H+ by ____. What is it called? A- Photosystem II
  • 15. Electrons leaving ___ will be used to reduce NADP+. Name? C- Photosystem I
  • 16. Where on this diagram would chlorophyll be found? A and C- The Photosystems
  • 17. What is D? Thylakoid space or compartment.
  • 18. What limits the progress of the Calvin cycle? Carbon dioxide, light, temperature (enzymes!).
  • 19. Carbon fixation involves adding carbon dioxide to ____. RuBP
  • 20. After PGA is phosphorylated, it is reduced by ______. NADPH
  • 21. How many carbon dioxide molecules are needed to make one molecule of glucose? 6
  • 22. How many ATP are required to regenerate RuBP from PGAL? 3
  • 23. How many ATP are necessary to phosphorylate PGA? 6 ATP
  • 24. NADPH and ATP are used in the light _________ reactions of photosynthesis. Independent (Calvin Cycle)
  • 25. Water is split and oxygen is released in which reactions of photosynthesis? Light-dependent reactions
  • 26. What molecule is the oxygen formed from during photosynthesis? Water
  • 27. During chemiosmosis, the H+ concentration is higher in the ____ of the chloroplast. Thylakoid space.
  • 28. During chemiosmosis hydrogen ions flow _____ their concentration gradient through _____________ in the thylakoid membrane. Down; ATP synthase
  • 29. In the Calvin cycle, carbon dioxide is (oxidized/reduced) to form PGAL. Reduced
  • 30. Five molecules of PGAL are used to re-form _____ molecules of RuBP. 3
  • 31. Water vapor exits and carbon dioxide enters through the ___ in the leaf. Stomata.
  • 32. When photons hit the photosystems electrons from ____ molecules are excited. Chlorophyll
  • 33. To make one molecule of glucose, how many ATP are necessary? 18 ATP
  • 34. How many carbons does a molecule of RuBP have? 5
  • 35. Carbon fixation occurs in the ___ of the chloroplast. Stroma
  • 36. Why is light necessary in photosynthesis? It energizes the electrons.
  • 37. What is the equation for photosynthesis? 6CO2 + 6H2O + light energy  C6H12O6 + 6O2