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Chapter 8 Photosynthesis

Chapter 8 Photosynthesis. Two Important “Players”. ATP. e -. e -. NADPH. ATP. ATP- adenosine triphosphate Energy storing molecule Reusable ATP ADP + P + Energy. NADPH. NADP + + 2 e - + H + NADPH Carries 2 electrons Reusable. e -. e -. NADPH. Photosynthesis.

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Chapter 8 Photosynthesis

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  1. Chapter 8Photosynthesis

  2. Two Important “Players” ATP e- e- NADPH

  3. ATP • ATP- adenosine triphosphate • Energy storing molecule • Reusable ATP ADP + P + Energy

  4. NADPH NADP+ + 2 e- + H+ NADPH • Carries 2 electrons • Reusable e- e- NADPH

  5. Photosynthesis • All organisms get energy to make ATP from food • Autotrophs- use sunlight energy to make food through photosynthesis • Heterotrophs- get food by consuming other organisms

  6. The Nature of Light • Light travels in waves of varying wavelengths in the electromagnetic spectrum.

  7. Pigment • A compound that absorbs light What the important pigment found in plants?

  8. Chloroplast Pigments • *Chlorophyll a- blue-green • Chlorophyll b- yellow-green • Carotenoids • Carotene- orange • Xanthophyll- yellow • * = primary pigment (most abundant)

  9. The Structure of a Chloroplast

  10. An Overview of Photosynthesis • Chemical Equation:

  11. An Overview of Photosynthesis • Summary: • Light Dependent (location: thylakoid membrane) Light energy chemical energy (NADPH & ATP) 2. Light Independent (location: stroma) Chemical energy (+NADPH & ATP) glucose

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