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Fotosintesis

Fotosintesis. KI-3161 Bagian ke-dua. Sejarah: 1648 : Jean-Baptiste von Helmont: “insignificant change of the soil has been rooted” 1727:Stephen Hales 1771:Priestly – Lavoiser: O2- role of 1779: Jan Ingen-Housz:  1782: Jean Senebier : CO 2 1804: Theodore de Saussure: H 2 O

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Fotosintesis

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  1. Fotosintesis KI-3161 Bagian ke-dua

  2. Sejarah: 1648: Jean-Baptiste von Helmont: “insignificant change of the soil has been rooted” 1727:Stephen Hales 1771:Priestly – Lavoiser: O2- role of 1779: Jan Ingen-Housz:  1782: Jean Senebier : CO2 1804: Theodore de Saussure: H2O 1842: Robert Mayer: formula Tempat: Khloroplas Tahapan Fotosintesis: Reaksi Terang: Penyerapan cahaya Dua pusat transport elektron Fotofosforelasi Reaksi Gelap: Siklus Calvin Pengendalian siklus Calvin Foto respirasi dan siklus C4 Tempat & Tahapan Fotosintesis

  3. Sel & bagian-bagiannya Chloroplast

  4. Organel & perannya

  5. Kloroplas

  6. Reaksi Terang • Penyerapan cahaya • Pigmen • Chlorofil vs Heme • Spektra absorpsi • Transfer energi • Resonansi pada LHC

  7. Fotofosforelasi

  8. Fotosistem summary

  9. Alur elektron siklik

  10. Reaksi Gelap (Siklus Calvin) • Terjadi di Stroma Chl • Dua tahap: • Reduksi CO2 (diikat sbg karboksilat) aldehid-keton • Pembentukan molekul pengikat CO2

  11. Stoikhiometri siklus Calvin

  12. Regenerasi Ribulosa-1,5-bifosfat

  13. Contoh : jagung, tebu C4 : oksaloasetat C-4 vs C3: Tempat – sediaan CO2 Rubisco - fotorespirasi Siklus C4

  14. Siklus C4

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