Autotrophs are the producers of the biosphere

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