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20 Cards in this Set
- Front
- Back
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What is waters 3 roles?
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Give electrons to p2. 2. Creates the electro chemical gradient in the lumen. 3. Releases the oxygen gas.
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what are the 2 energy products?
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ATP & NADPH + H+
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The waste is?
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Oxygen gas
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ETC is occurring where?
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Thylakoid membrane
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Chemiosismosis occurs where?
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Across the “thylakoid membrane “ from the lumen to the stoma.
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Electricity is what?
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The flow of electrons.
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ETC Stage 1
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Converts sunlight into electrical energy, which is the flow of e’s. (NADPH)
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ETC Stage 2
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Chemiosmosis: Converts electrical energy into chemical energy stored in chemical bond
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What is a photo system?
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are functional and structural units of protein involved in photosynthesis that together carry out the absorption of light and the transfer of energy and electrons.
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What is a photo system made up of?
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Unit of 100 chlorophylls + Carrier molecules.
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Photosystem steps. (1-4)
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1. Light energy hitting P II
2. Electron of chlorophyll molecule absorbs the energy plus becomes excited. 3.Excited Electron leave chlorophyll and go to electron carriers. 4. Electrons move along chain of carrier molecules to lower levels of P I. |
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Photosystem steps. (5-8)
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5. Light hits P I.
6. Electron becomes excited move to carrier molecule and goes down ETC to lower energy level. 7. Electron carried to NADP+ 8. Electron from P I joins H+ ion to form NADPH+H+ |
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Formula of NADPH+H+
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2H+NAD + e -----> NADPH+H+
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What makes photosystem unstable?
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The electron lost from chlorophyll in P II.
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What makes P II Stable?
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Removing electron from H2O.
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Formula for removing electron?
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2 H2O -----> Electron + 4H + o2
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Define: Chemiosmosis
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Diffusion of chemicals through a membrane resulting in ATP formation
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Chemiosmosis Steps
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1. Electron move along ETC toward stoma, H+ are being formed in the lumen from the breaking of H2O.
2. The creates a concentration gradient of H+ across thylakoid membrane. |
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What does phosphorylation do?
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Adding a phosphate adds PO4 of ADP to make ATP.
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Phosphoryltion Formula
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ADP + Po4 ---> ATP through ATP thythesis in the membrane
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