The light-dependent reactions: the noncyclic electron pathway Slide number: 1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. H2OH2O e–e– 2 H +1 / 2 O 2 sun electron acceptor reaction-center chlorophyll a Photosystem I electron acceptor Energy level sun e–e– e–e– reaction-center chlorophyll a Photosystem II ATP ADP + P Electron transport system CH 2 OCO 2 Light-independent reactions: (Calvin cycle) e–e– H+H+ NADP + NADPH

The light-dependent reactions: the noncyclic electron pathway Slide number: 2 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

The light-dependent reactions: the noncyclic electron pathway Slide number: 3 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. electron acceptor Energy level sun e–e– e–e– reaction-center chlorophyll a Photosystem II

The light-dependent reactions: the noncyclic electron pathway Slide number: 4 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. electron acceptor Energy level sun e–e– e–e– reaction-center chlorophyll a Photosystem II ATP ADP + P Electron transport system CH 2 OCO 2 Light-independent reactions: (Calvin cycle)

The light-dependent reactions: the noncyclic electron pathway Slide number: 5 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. sun electron acceptor reaction-center chlorophyll a Photosystem I electron acceptor Energy level sun e–e– e–e– reaction-center chlorophyll a Photosystem II ATP ADP + P Electron transport system CH 2 OCO 2 Light-independent reactions: (Calvin cycle)

The light-dependent reactions: the noncyclic electron pathway Slide number: 6 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. sun electron acceptor reaction-center chlorophyll a Photosystem I electron acceptor Energy level sun e–e– e–e– reaction-center chlorophyll a Photosystem II ATP ADP + P Electron transport system CH 2 OCO 2 Light-independent reactions: (Calvin cycle) e–e– H+H+ NADP + NADPH

The light-dependent reactions: the noncyclic electron pathway Slide number: 7 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. H2OH2O e–e– 2 H +1 / 2 O 2 sun electron acceptor reaction-center chlorophyll a Photosystem I electron acceptor Energy level sun e–e– e–e– reaction-center chlorophyll a Photosystem II ATP ADP + P Electron transport system CH 2 OCO 2 Light-independent reactions: (Calvin cycle) e–e– H+H+ NADP + NADPH