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5 Written questions

5 Matching questions

  1. Mesophyll
  2. thylakoid
  3. CAM photosynthesis
  4. Calvin Cycle
  5. Types of Photosynthesis
  1. a C3 photosysthesis
    C4 photosynthesis
    CAM photosynthesis
  2. b cells where chloroplasts are located, in the middle of the leaf, have 20 to 100 chloroplasts
  3. c only fix carbon at night
    dry, desert environment
    only opens the stomata at night, which converts to a temporary carbon storage molecule, which is then used in the calvin cycle
    ex. cactus, aloe plants, succulants
  4. d 3rd membrane inside the stroma
    set of membranes with an internal space (lumen)
    arranged into stacks
    where chlorophyll and other pigments are stored
  5. e what most plants use for carbon fixation
    series of redox reactions
    each cycle produces 1/2 glucose molecule
    1. take in CO2
    2. Reduce CO2, which produced organic molecules
    3. recycle/regenerate RuBP (molecule which CO2 is fixed to)
    In-ATP, NADPH, CO2
    Out- Glucose, ADP, NADPH+

5 Multiple choice questions

  1. 1. Electrons pass from one membrane protein to the next, giving up energy as they pass
    2. fuels hydrogen ion pump, which pump H+ ions (AKA protons) into thylakoid space
    3. H+ ion moves back through ATP synthase, fueling this enzyme that synthesizes ATP
  2. when an electron returns to its ground state, releases light
  3. plants use this as a back up
    bacteria use it to make ATP from sunlight
    probably the first system
  4. chlorophyll b (yellow green)
    carotenoids (orange)
  5. cyclic photophosphorlation produces ATP only
    simplest form
    electrons recycle so none are needed
    not O2 released, bc H2O is not split

5 True/False questions

  1. Photonspackets of energy that travel in waves, one of these energizes one electron


  2. Steps of Noncyclic pathway (photophosphorlation)1. Light energizes 2 electrons (source=H2O, energy from this splitting goes to photosystem II)
    2. High energy electrons passed to electron transport chain
    3. release energy as they pass through the chain (fuels chemiosmosis that produces ATP)
    4. low energy electrons from transport chain pass to photosystem I
    5. energized again from the sun
    6 high energy electrons move to 2nd electron transport chain, then to electron carrier (NADPH)


  3. Main plant pigmentchlorophyll b (yellow green)
    carotenoids (orange)


  4. Photosystemspackets of energy that travel in waves, one of these energizes one electron


  5. Stomatainclosed by the inner membrane


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