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Summary Topic 5 Light Dependent Reaction

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Edexcel Biology Topic 4 Light Dependent Reaction, Stroma, Thylakoid Membrane, Electron Transfer Chain, ATP

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Light Dependent Reaction
site
of light dependent Reaction = Thylakoid membranes

associated
-
pigments
S.I units
Chlorophyll A and B B-carotene
Xanthophyll
-



, ,




absorbtion light

different spectrum wavelengths of
-

absorbed


absorbtion "more
-maximises
energy photosynthesis
-Chlorophyll A =


primary pigment
Thylakoid large surface e more
area absorbtion -> more


photosynthesis
Thylakoid membrane -


phospholipid bilayer pigments proteins
, ,


-

electron transport proteins
+
H
-

proton pumps
ATP
Synthase
-




-




phorosystems .




Structure :
Lumen :
Ht Ht H +

H+ Ht



↑ W
-D
⑭ Q0 ④
---- -




NAPPH
0
x


IPS)
=
>
- NADPH



g
.



A
.

Ze ze
---m
-

ATP

↳ no -
249 Synthase


↓ ADP + Pi-ATP
On

Strama:

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Uploaded on
January 19, 2025
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Summary
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