photosynthesis from solar energy to glucose. general structure of the chloroplast
TRANSCRIPT
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Photosynthesis
From Solar Energy To Glucose
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General Structure Of The Chloroplast
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Thylakoid Membrane And Space Are Continuous
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Electron Micrograph 3700X
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Absorption of Solar Radiation 450nm to 750nm
Takes place in a chlorophyll molecule
There are many different chlorophyll’sChlorophylls a, b, d Carotenoid, Xanthophyll
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What Portion of Visible Light Is Absorbed?
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A Highly Charged Electron Is Released From Chlorophyll
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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
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The Electron Continues To Provide Energy Increasing The Concentration Of Protons In
the Lumen And Decreasing The
Concentration Of Protons In The Stroma
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This Process Of Electron Transport Also Produces ATP And NADPH In The Stroma
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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
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The Calvin Cycle: A Series Of Dark Reactions
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Bottom Line
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Final Overview Of Photosynthesis