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Zusammenfassung Stoffwechsel (Biologie)

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Eine Zusammenfassung im ersten Jahr eines Schweizer Gymnasiums. Mit folgenden Themen: chemische Elemente der Bau-/Betriebtsstoffe / Fotosynthese (Lichtreaktion, Dunkelreaktion) / Absorption, Reflextion, Transmission des Lichtes / schwarzes Licht, weisses Licht, farbiges Licht / Engelmann-Experime...

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  • May 29, 2021
  • 5
  • 2020/2021
  • Summary
  • Secondary school
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Stoffwechsel (Biologie)


Die wichtigsten chemischen Elemente für die Bau und Betriebsstoffe
Bau- und Betriebsstoffe
- Kohlenhydrate, z.B. Traubenzucker (C6H12O6)
- Fette
- Proteine (Eiweisse)

Elemente aus denen die Bau- und Betriebsstoffe aufgebaut sind
- Kohlenestoff, C
- Sauerstoff, O
- Wasserstoff, H
- Stickstoff, N
- Phosphor, P
- Schwefel, S

Der Ablauf der Fotosynthese und die Funktion der Transmission
Lichtreaktion
Lichtenergie
H2O + ADP + P + NADP+ -> ATP + (NADPH + H+) + O2

Für diese Reaktion braucht es Lichtenergie. Das heisst, dass sie nur am Tag stattfinden, kann

Dunkelreaktion / Calvin-Zyklus
CO2 + ATP + (NADPH + H+) -> C6H12O6 + ADP + P + NADP+ + H2O

Für diese Reaktion braucht es kein Licht. Daher kann sie auch in der Nacht stattfinden

Fotosynthese (Assimilation)
Lichtenergie
6 CO2 + 12 H2O -> C6H12O6 + 6 O2 + 6 H2O

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