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Photosynthesis

Photosynthesis. From Solar Energy To Glucose. General Structure Of The Chloroplast. Thylakoid Membrane And Space Are Continuous. Electron Micrograph 3700X. Absorption of Solar Radiation 450nm to 750nm . Takes place in a chlorophyll molecule There are many different chlorophyll’s

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Photosynthesis

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Presentation Transcript

  1. Photosynthesis From Solar Energy To Glucose

  2. General Structure Of The Chloroplast

  3. Thylakoid Membrane And Space Are Continuous

  4. Electron Micrograph 3700X

  5. Absorption of Solar Radiation 450nm to 750nm • Takes place in a chlorophyll molecule • There are many different chlorophyll’s Chlorophylls a, b, d Carotenoid, Xanthophyll

  6. What Portion of Visible Light Is Absorbed?

  7. A Highly Charged Electron Is Released From Chlorophyll

  8. The Electron Supplies Energy To Accomplish the Following: To break water apart in the lumen which releases Oxygen as a waste product and creates Protons 2H2O + e- + enzyme → O2 + 4H+ + e- + enzyme This increases the Proton concentration in the lumen

  9. The Electron Continues To Provide Energy Increasing The Concentration Of Protons In the Lumen And Decreasing The Concentration Of Protons In The Stroma

  10. This Process Of Electron Transport Also Produces ATP And NADPH In The Stroma

  11. These Steps Are Part Of The Light Reactions Of Photosynthesis: They Can Only Happen During Daylight So what has taken place? 1. Concentration gradient of protons has been made.[H+] High in the Lumen(Thylakoid Space) and Low in the Stroma 2. Protons move by facilitated diffusion through an ATP Synthase thus making ATP from ADP + Pi in the Stroma. 3. NADPH, another energy carrying molecule is made in the Stroma

  12. The Calvin Cycle: A Series Of Dark Reactions

  13. Bottom Line

  14. Final Overview Of Photosynthesis

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