Light Dependent Reaction

1
Light Dependent Reaction

• Objectives
• Understanding the processes of photoionisation,
  photophosphorylation photolysis.
• Knowledge of where these processes take place.
• Knowledge of the difference between cyclic
  non-cyclic phosphorylation.

2
Overview of photosynthesis
3
Overview of photosynthesis
4
Photosystems
5
Photosystems
6
Electron Transfer
7
Electron Transfer

8
Electron Transfer

• The energy changes of electrons as they flow
  through the light reactions are analogous to the
  cartoon.
• As complicated as the scheme is, dont lose track
  of its functions
• The light reactions use solar power to generate
  ATP and NADPH which provide chemical energy and
  reducing power to the sugar making reactions.

9
This powerpoint was kindly donated to
www.worldofteaching.com http//www.worldofteac
hing.com is home to over a thousand powerpoints
submitted by teachers. This is a completely free
site and requires no registration. Please visit
and I hope it will help in your teaching.