Page 140 - Color Atlas of Biochemistry

Energy Metabolism 131

A. Photosystem II B. Redox series

Ol
E (V) Photo-
Bound Exchangeable Plasto- chemical
quinone quinone quinone -1.2 excitation
Q
-1.0
Fe
-0.8 Fe/S
Mg 2+ Mg 2+ Mg 2+ Ph
Q Q Q -0.6
Mg 2+ Mg 2+ Mg 2+ A B P Q A Fd
-0.4 Q B H
N A
-0.2 Q P P
Light- 2+ Reaction 0 b/f NADP
harvesting Mg center PC
complex (P 680 ) +0.2
Pheophytin PS I
+0.4 PS II (P 700 )
(P )
+0.6 680
Water- +0.8 Cyclic
splitting 4 Mn 2+ H O photophos-
2
enzyme H O 4 ions 2 H 1/2 O phorylation
2 2
1.

Plasto-
a b c d quinone
OH (ox.)

OH
Mg 2+ Mg 2+ Mg 2+ Mg 2+
Exchange
Q (red) Q (ox)
2. B P
H O
2
C. Calvin cycle
A A
H H OO P 6 ADP P P PP P 6 ATP
H C C C C CH 2
2
4
P O OH OH
6 CO 2 6
bisphosphate
H O O C O Ribulose
2
CO , Mg 2 1 CO 2 Ribulose 1.5- Light 5-phosphate
2
6 H O 1 6 4 P
2
O O OH O P 12 Light
3-phosphate
H C C C C C CH 3-Phospho-
2
2
Light Glyceral
glycerate
P O OH O O
10
1 Ribulose-bisphosphate 12 P
carboxylase 4.1.1.39 2
A 3 Glucose
2 Phosphoglycerate kinase PP P
2.7.2.3 6-phosphate
12 ATP A
Glyceraldehyde 3-phosphate P P
3
dehydrogenase (NADP ) 1.2.1.13 12 ADP N A Gluco-
N A
P neogenesis
P
4 Phosphoribulokinase 2.7.1.19 12 NADPH 12 NADP P
2 Glyceraldehyde
3-phosphate

Koolman, Color Atlas of Biochemistry, 2nd edition © 2005 Thieme
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