Pathways of Photosynthesis Light-Dependent Reactions 5.2 Image from: http://lifewallpaperz.com/image.php?pic=/images/2015/sunlight/sunlight-01.jpg

Photosynthesis Overview Image from: http://kvhs.nbed.nb.ca/gallant/biology/photosynth_summary.html

Light-Dependent Reactions 3

Light-Dependent Reactions 4

Light-Dependent Reactions excitation of electron in Photosystem II (chlorophyll P680), which is transferred to primary electron acceptor linear (non-cyclic) electron flow chemiosmosis (ATP synthesis)

Photosystem II Image from: http://www.artinaid.com/wp-content/uploads/2013/04/Light-absorption-in-photosynthesis.png

Electron Transport Image from: http://163.16.28.248/bio/activelearner/08/ch8c2.html

Image from: http://kensieandhuntersproject.blogspot.ca/

Image from: http://tokresource

Non-cyclic Electron Flow Image from: http://iws.collin.edu/biopage/faculty/mcculloch/1406/outlines/chapter%2010/chap10.htm

Let’s visit the Khan Academy… Fantastic explanation of electron transport in photosynthesis (20 minutes long) https://www.khanacademy.org/science/biology/photosynthesis/v/photosynthesis-light-reactions-and-photophosphorylation

NAD+ & NADP+ nicotinamide adenine dinucleotide phosphate coenzyme used in anabolic reactions such as photosynthesis Image from: http://www.il.mahidol.ac.th/e-media/electrochemistry/web/pictures/nad.gif

Cyclic Electron Flow Image from: http://www.sivabio.50webs.com/plastids.htm

Cyclic Electron Flow Image from: http://iws.collin.edu/biopage/faculty/mcculloch/1406/outlines/chapter%2010/chap10.htm

Other Resources Virtual cell movie on Electron Transport Chain in Photosynthesis McGraw-Hill Ryerson self-quiz…try it! (I can’t download the animation but maybe you can.) If you are looking to test yourself…do a search for “light-dependent reactions quiz” & see what you find…