Lesson Overview Photosynthesis An Overview THINK ABOUT IT

Lesson Overview Photosynthesis: An Overview THINK ABOUT IT How would you design a system to capture the energy of sunlight and convert it into a useful form?

Lesson Overview Photosynthesis: An Overview Important Root Words Root Word Photo Chloro -phyll Stome Xantho Meaning

Lesson Overview Photosynthesis: An Overview All Organisms Need Energy �Notes: �Cells use energy trapped in chemical bonds. When these bonds are broken, energy is released for cellular activities. �When cells use several linked chemical pathways to create the energy needed, this is called a biochemical pathway.

Lesson Overview Photosynthesis: An Overview Light Notes: Our eyes see the individual wavelengths of the visible spectrum as different colors: red, orange, yellow, green, blue, indigo, and violet.

Lesson Overview Photosynthesis: An Overview Pigments Notes: There are two main types of chlorophyll: –. –.

Lesson Overview Photosynthesis: An Overview Light and Pigments. Estimated Absorption (%) 100 80 60 Chlorophyll b Chlorophyll a 40 20 0 (nm) 400 450 Wavelength 500 550 600 650 700 750 Wavelength (nm) Copyright Pearson Prentice Hall

Lesson Overview Photosynthesis: An Overview Light and Pigments Estimated Absorption (%) 100 80 60 Chlorophyll b Chlorophyll a 40 20 0 400 450 500 550 600 650 700 750 Wavelength (nm) Copyright Pearson Prentice Hall

Lesson Overview Pigments Photosynthesis: An Overview

Lesson Overview Photosynthesis: An Overview What’s going on here? Why do leaves turn color in the fall?

Lesson Overview Photosynthesis: An Overview Pigments Most of the time, the green color of the chlorophyll overwhelms the other pigments, but…

Lesson Overview Photosynthesis: An Overview Inside a Chloroplast Plant cells Copyright Pearson Prentice Hall

Lesson Overview Photosynthesis: An Overview Inside a Chloroplast. Single thylakoid Chloroplast Copyright Pearson Prentice Hall

Lesson Overview Photosynthesis: An Overview Inside a Chloroplast • Notes: Stroma Granum Chloroplast Copyright Pearson Prentice Hall