PHOTOSYNTHESIS

WHY IS THIS IMPORTANT?

Our planet runs on solar energy

Provides us with all our food requirements and much of our fuel requirements

global warming

Where Does Photosynthesis Happen?

Photosynthesis happens in Chloroplasts

Chlorophyll is the green pigment located within the chloroplasts

Overview of Photosynthesis

• Light-dependent reactions– Light energy is transferred to ATP and

NADPH

– Water molecules are split, releasing O2

• Light-independent reactions (Calvin Cycle)– Energy in ATP and NADPH drives synthesis of

glucose and other carbohydrates from CO2 and water

Chloroplasts

1. 2.

3. 4.

5.

6.

Photoexcitation!