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5 Written questions

5 Matching questions

  1. Overall Reaction
  2. Light-Dependent Reactions
  3. Types of Photosynthesis
  4. Energy of Light Rays (length)
  5. Cyclic pathways
  1. a cyclic photophosphorlation produces ATP only
    simplest form
    electrons recycle so none are needed
    not O2 released, bc H2O is not split
  2. b C3 photosysthesis
    C4 photosynthesis
    CAM photosynthesis
  3. c 6CO2 +12H20 = C6H12O6 + 6O2

    CO2 and the C6H12O6 are involved in the reduction reaction, H20 and O2 are involved in the oxidation reaction
  4. d GOAL=convert light energy to chemical energy
    1. occurs in thylakoid membranes
    2. light energy causes chlorophyll to spit out high energy electrons
    3. Electrons are replaced from H20
    4. Produce ATP and NADPH (electron carrier)
  5. e long=less energetic
    short=more energetic

5 Multiple choice questions

  1. GOAL=convert to storable form of chemical energy
    1. independent of light
    2. conver inorganic forms of carbon (CO2) into organic form to create glucose
    3. Uses products of the Light-Dependent reactions to fix the carbon
  2. stacks of thylakoids
  3. holes on the underside of a leaf where gas is released
  4. IN= H2O, light, ADP, P, NADPH+
    OUT= ATP, NADPH, O2 (waste)
  5. cells where chloroplasts are located, in the middle of the leaf, have 20 to 100 chloroplasts

5 True/False questions

  1. C4 photosynthesisC4 plants
    before calvin cycle, CO2 is fized into a 4 carbon molecule
    seasonally (long, dry season)
    ex. corn, sugarcane, crabgrass

          

  2. Photosystemswhere 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)

          

  3. Why do cyclic pathways exist?cyclic photophosphorlation produces ATP only
    simplest form
    electrons recycle so none are needed
    not O2 released, bc H2O is not split

          

  4. Stromainclosed by the inner membrane

          

  5. 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)