CHAPTER 8 - OXIDATION/PHOSPHORYLATION
D: THE LIGHT
REACTION OF PHOTOSYNTHESIS
BIOCHEMISTRY - DR. JAKUBOWSKI
04/15/16
Learning Goals/Objectives for Chapter 8D:
After class and this reading, students will be able to
- described the mechanistic similarities between mitochondrial
oxidative/phosophorylation in which NADH and FADH2 are
regenerated on reduction of O2 and the light reaction of
photosynthesis in which O2 and a reducing agent, NADPH are
produced;
- describe similarities in fluorescence resonance energy transfer and
exciton transfer;
- describe the difference in properties between chlorophylls acting as
antennae and chlorophylls at the reaction center;
- describe how sunlight driven excitation of chlorophyll molecules at
the reaction center produces an oxidzing agent strong enough to oxide
water and form O2, itself a powerful oxidizing agent;
- explain the general flow of electrons from dioxgen to NADP+ through a
series of mobile and membrane protein bound electron carriers in the Z
scheme of electron transport in the chloroplast thylacoid membranes;
- explain with picture diagrams how oxidation of H2O and phosphorylation
reactions (to produce ATP) are coupled in in the Z scheme;
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D10. Links
and References
Photosynthesis
- ASU
Photosynthesis
on the Web - 2002
- Current Opinion in Chemical Biology (2012) 16, 11–18. DOI
10.1016/j.cbpa.2012.03.003
- Nature (2011) 473, 55,-61.
- Journal of Biophysical Chemistry (2012) 3, 111-126.
doi:10.4236/jbpc.2012.32013
- Coordination Chemistry Reviews (2012) 256, 2445– 2452
- Sessions, A. et al. The Continuing Puzzle of the Great Oxidation Event.
Currrent Biology, 19, R567–R574 (2009)
- Alper, J. Water Splitting Goes Au Naturel. Science, 299, pg 1686 (2003)
- Demming-Adams, B. & Adams, W. Antioxidants in photosynthesis and human
nutrition. Science. 298, pg 2149 (2002)
- Jordan et al. 3D Structure of
Cyanobacterial Photosystem I (shows how chlorophylls use solar energy to
transport electrons) Nature. 411. pg 896, 909 ((2001)
- Balabin and Onuchic. Exploiting thermal motion in
electron transfer (combined molecular dynamics, quantum mechanics to study e
transfer in photosynthetic reaction center) Science. 290. pg 61, 114
(2000)
- Dismukes. Photosynthesis: Splitting
Water. Science. 292. pg 447 (2001)
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Chapter 8D:
The LIght Reaction of Photosynthesis
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