photosynthesis chapter 4. photosynthesis photosynthesis- the production of carbohydrates from carbon...

Photosynthesis

Chapter 4

Photosynthesis

• Photosynthesis- the production of carbohydrates from carbon dioxide and water in the presence of chlorophyll using light energy.

6CO2 + 12H2O ---> C6H12O6 + 6O2 + 6H2O

Summary of Photosynthesis

Light Penetration vs. Depth

• Albert Einstein- proposed the Particle Model of Light in 1905.– Light is composed of particles of energy called photons.– Visible light has different photon wavelengths.

Absorption Spectra for Several Plant Pigments

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660

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445 480Phycobilins- 500-660

Seaweed and Plant Cells

Light-Dependent Reactions

Light-Independent Reactions

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