Autotrophs are the producers of the
biosphere
Photosynthesis occurs in chloroplasts
in plant cells
The Chloroplast
Plants produce O2 gas by splitting
water
Photosynthesis is a redox process, as is
cellular respiration
Overview: The two stages of photosynthesis are
linked by ATP and NADPH
Visible radiation drives the light
reactions
Interaction of light with a chloroplast
Photosystems capture solar power
Two photosystems connected by an electron
transport chain generate ATP and NADPH
Chemiosmosis powers ATP synthesis in
the light reactions
ATP and NADPH power sugar synthesis
in the Calvin cycle
Review: Photosynthesis uses light energy,
CO2, and H2O to make food molecules
Adaptations that save water in hot, dry
climates evolved in C4 and CAM plants