The end products of the light dependent reactions of photosynthesis are a. ADP, H 2 O, NADPH b. ADP, PGAL, RuBP (RuDP) c. ATP, CO 2, H 2 O d. ATP, NADPH,

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  • The end products of the light dependentreactions of photosynthesis are

    ADP, H2O, NADPH ADP, PGAL, RuBP (RuDP) ATP, CO2, H2O ATP, NADPH, O2 CO2, H+, PGAL

    Answer: d

  • The function of water in photosynthesisis to

    combine with CO2 absorb light energy supply electrons in the light-dependent reactionsd. Transport H+ ions in the light-independent (dark) reactionse. Provide O2 for the light-independent reactions

    Answer: c

  • When hydrogen ions are pumped out of thechloroplast stroma, across the thylakoidmembrane, and into the thylakoid space, theresult is

    damage to the chloroplast. the reduction of NAD the restoration of the Na-K balance across the membrane.d. the creation of a proton gradient.e. the lowering of pH in the chloroplast stroma.Answer: d

  • Which of the following processes is carried out more efficiently by a C4 plant than bya C3 plant?

    Light absorption Chemiosmotic coupling Photolysis Fixation of CO2 Transport of sugarsAnswer: d

  • Needed: Light Photons(discrete packets of energy)High energy photons (UV and above)cause cellular damage by denaturingorganic moleculesEnergyOnly ~ 42% of solar radiation Makes it to the surface

  • Needed: Chlorophyll(blue green in color)(yellow green in color)

  • Also present: Carotenoids

  • (chlorophyll In membranes)

  • Thylakoid spaceStroma

  • Comparison of chemiosmosis inmitochondria andchloroplasts

    MitochondriaChloroplastElectron sourceChemical energy from food moleculesLight energy from photonsSite of hydrogen reservoirIntermembrane spaceThylakoid lumenSite of ATP synthesisMitochondrial matrixChloroplast stroma

  • Campbell; Fig. 10.15Comparison of chemiosmosis inmitochondria andchloroplasts

  • (PGA)(PGAP)(PGAL)(PGAL)

  • The function of water in photosynthesisis to

    combine with CO2 absorb light energy supply electrons in the light-dependent reactionsd. Transport H+ ions in the light-independent (dark) reactionse. Provide O2 for the light-independent reactions

    Answer: c

  • The end products of the light dependentreactions of photosynthesis are

    ADP, H2O, NADPH ADP, PGAL, RuBP (RuDP) ATP, CO2, H2O ATP, NADPH, O2 CO2, H+, PGAL

    Answer: d

  • Which of the following processes is carried out more efficiently by a C4 plant than bya C3 plant?

    Light absorption Chemiosmotic coupling Photolysis Fixation of CO2 Transport of sugarsAnswer: d

  • When hydrogen ions are pumped out of thechloroplast stroma, across the thylakoidmembrane, and into the thylakoid space, theresult is

    damage to the chloroplast. the reduction of NAD the restoration of the Na-K balance across the membrane.d. the creation of a proton gradient.e. the lowering of pH in the chloroplast stroma.Answer: d

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