photosynthese - intro Flashcards

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1
Q

Équation générale de la photosynthèse

A

énergie solaire + 6CO2 + 6H2O → C6H12O6 + 6O2

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2
Q

Structure de la feuille

A

épidermes, mésophylle, cellules de la gaine
périfasciculaire, stomates

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3
Q

chloroplaste

A

membranes
stroma
thylakoïde,
membrane thylakoïdienne
espace thylakoïdien
grana

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4
Q

epidermes

A

prévenir la perte d’eau
permet echanges gazeux

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5
Q

mésophylle

A

partie interne d’une feuille
siege principale de la photosynthese
milieu de la feuille

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6
Q

stomate

A

echanges gazeux
co2 entre et 02 sort

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7
Q

Emplacement des pigments photosynthétiques

A

molécule qui absorbe les photons
choloplaste

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8
Q

chlorophylle

A

reflete le vert

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9
Q

caroténoides

A

lorque le chlorophyle se dégrade en automne

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10
Q

Spectre d’action des différents pigments

A

rouge et bleu haut

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11
Q

Réactions d’oxydation et de réduction.

A

Ex: Zn → Zn2+ + 2 e-
Ex: Cu2+ + 2 e- → Cu

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