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Chapter_19 - The light reaction of photosynthesis I...

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The light reaction of photosynthesis I. Photosynthesis takes place in chloroplasts CO 2 + H 2 O -------> (CH 2 O) + O 2 Light
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The light reaction of photosynthesis I. Photosynthesis takes place in chloroplasts CO 2 + H 2 O -------> (CH 2 O) + O 2 Light The thylakoid membrane: contains the energy- transducing machinery: light-harvesting proteins, reaction centers, electron transport chains and ATP synthase. The thylakoid membrane and inner membrane: impermable; Outer member: permeable.
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The light reaction of photosynthesis II. Light absportion by chlorophyll induces electron transfer CO 2 + H 2 O -------> (CH 2 O) + O 2 Light
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The light reaction of photosynthesis II. Light absportion by chlorophyll induces electron transfer Photoinduced charge separation
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Light absportion by chlorophyll induces electron transfer I. Photosynthetic Bacteria and the photosynthetic reaction centers of grant plants have a common core Photoinduced charge separation
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Light absportion by chlorophyll induces electron transfer I. Photosynthetic bacteria and the photosynthetic reaction centers of grant plants have a common core Photosynthesis in green plant: PSI and PSII; PS I: 13 chains, >60 chlorophyll, 1 Q, 3 4Fe-Fs clusters; 800 kd; PS II: 10 chains, > 30 chlorophyll, nonheme Fe, 4 Mn 2+ ; Photosynthetic photosynthetic reaction center: L (31 kd), M (36 kd), H (28kd) and C- cyt c like
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Light absportion by chlorophyll induces electron transfer I. Photosynthetic bacteria and the photosynthetic reaction centers of grant plants have a common core L ; M ; 5 TM helices H: 1 helix; cytoplasmic side; Cyt-c subunit. Periplasmic side; 4 c-heme; 4 Bchl-b and 2 BPh;
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Light absportion by chlorophyll induces electron transfer I. Photosynthetic bacteria and the photosynthetic reaction centers of grant plants have a common core P960 - special pair; Charge separation -- 10 -11 sec
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Light absportion by chlorophyll induces electron transfer I. Photosynthetic bacteria and the photosynthetic reaction centers of grant plants have a common core P960 - special pair; Charge separation -- 10 -11 sec Prevent back-reaction
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