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The equation for the overall process is: 6CO 2 + 6H 2 O  C 6 H 12 O 6 + 6O 2

KEY CONCEPT Photosynthesis converts light energy is captured and used to build sugars that store chemical energy. granum ( stack of thylakoids ). 1. chloroplast. sunlight. 6H 2 O. 6O 2. 2. energy. thylakoid. stroma ( fluid outside the thylakoids ). 6CO 2. 1 six-carbon sugar.

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The equation for the overall process is: 6CO 2 + 6H 2 O  C 6 H 12 O 6 + 6O 2

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  1. KEY CONCEPT Photosynthesis converts light energy is captured and used to build sugars that store chemical energy.

  2. granum (stack of thylakoids) 1 chloroplast sunlight 6H2O 6O2 2 energy thylakoid stroma (fluid outside the thylakoids) 6CO2 1 six-carbon sugar C6H12O6 3 4 • The equation for the overall process is: 6CO2 + 6H2O  C6H12O6 + 6O2

  3. grana (thylakoids) chloroplast stroma Photosynthesis in plants occurs in chloroplasts. • Photosynthesis occurs in a series of stages in the chloroplasts. • grana (thylakoids)- photosystem II, photosystem I and the electron transport chain. • Stroma- Calvin Cycle

  4. The first stage of photosynthesis captures and transfers energy. • The light-dependent reactions include groups of molecules called photosystems.

  5. Photosystem II captures and transfers energy. • 1.chlorophyll absorbs energy from sunlight • energized electrons enter electron transport chain • 2.water molecules are split • oxygen is released as waste • 3.hydrogen ions are transported across thylakoid membrane

  6. Photosystem I captures energy and produces energy-carrying molecules. • 4.chlorophyll absorbs energy from sunlight • 5.energized electrons are used to make NADPH • NADPH is transferred to light-independent reactions

  7. The light-dependent reactions produce ATP. • 6.hydrogen ions flow through a channel in the thylakoid membrane • 7.ATP synthase attached to the channel makes ATP

  8. The second stage of photosynthesis uses energy from the first stage to make sugars. • Light-independent reactions occur in the stroma and use • CO2 molecules enter the Calvin cycle

  9. The light-independent reactions make sugars. • take place in stroma • needs carbon dioxide from atmosphere • use energy to build a sugar in a cycle of chemical reactions

  10. A molecule of glucose is formed as it stores some of the energy captured from sunlight. • 1.carbon dioxide molecules enter the Calvin cycle • 2.energy is added and carbon molecules are rearranged • 3.a high-energy three-carbon molecule leaves the cycle

  11. A molecule of glucose is formed as it stores some of the energy captured from sunlight. 4.two three-carbon molecules bond to form a sugar • remaining molecules stay in the cycle

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