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5 Written questions

5 Matching questions

  1. Photosystems
  2. Main plant pigment
  3. Why do cyclic pathways exist?
  4. C4 photosynthesis
  5. CAM photosynthesis
  1. a plants use this as a back up
    bacteria use it to make ATP from sunlight
    probably the first system
  2. b 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
  3. c where chlorophyll is stored
    include antenna complex/reaction center
    2 types= photosystem II and photosystem I (in order in which they occur, named in order of discovery)
  4. d C4 plants
    before calvin cycle, CO2 is fized into a 4 carbon molecule
    seasonally (long, dry season)
    ex. corn, sugarcane, crabgrass
  5. e bright green chlorophyll A
    absorbs reds and blues, reflects green and yellow

5 Multiple choice questions

  1. C3 photosysthesis
    C4 photosynthesis
    CAM photosynthesis
  2. most plants
    goes through the C3 pathway
    normal photosynthesis
  3. 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)
  4. holes on the underside of a leaf where gas is released
  5. long=less energetic
    short=more energetic

5 True/False questions

  1. Steps of Chemiosmosis1. 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. Cyclic pathwayscyclic photophosphorlation produces ATP only
    simplest form
    electrons recycle so none are needed
    not O2 released, bc H2O is not split

          

  3. Other pigmentschlorophyll b (yellow green)
    carotenoids (orange)

          

  4. Granum (grana plural)bright green chlorophyll A
    absorbs reds and blues, reflects green and yellow

          

  5. Photonswhere chlorophyll is stored
    include antenna complex/reaction center
    2 types= photosystem II and photosystem I (in order in which they occur, named in order of discovery)