1. IB Biology

2. Photosynthesis is a chemical reaction Rate can be measured by quantifying The uptake of reactants: ____________ The production of products: _________ 6CO 2 + 6H 2 O 6O 2 + C 6 H 12 O 6 6O 2 + C 6 H 12 O 6 6CO 2 + 6H 2 O light

3. Temperature, Light Intensity and CO2 concentration all affect the rate of photosynthesis Note: Temperature also has a limit, as with most enzymatic functions, a broader chart would reveal a bell shaped curve Rate of Photosynthesis Light Intensity Rate of PhotosynthesisCO 2 Concentration Rate of Photosynthesis Temperature

4. Thylakoids: large surface area ideal for light absorption (light dependent reactions) Lumen: Small space inside thylakoids for accumulation of protons Fluid Stroma for the enzymes of Calvin Cycle

6. The rate of a physiological activity plotted against wavelength of light.

8. The absorption of energy by something (chlorophyll, for example) at various wavelengths So, why are plants green?