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AP Biology Photosynthesis Part 1.

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Presentation on theme: "AP Biology Photosynthesis Part 1."— Presentation transcript:

1 AP Biology Photosynthesis Part 1

2 Autotroph - Plants

3 Autotroph - Algae

4 Autotroph - Phytoplankton

5 Autotroph - Bacteria

6 Heterotroph - Animal

7 Heterotroph - Fungus

8 Chloroplasts in plant leaf cells

9 Chloroplast

10 Photosynthesis chemical reaction (Remember… conservation of matter.)
6 CO2 + 6 H2O  C6H12O6 + 6 O2 + Heat

11 Photosynthesis Light Reaction

12 Photosynthesis Calvin Cycle

13 Electromagnetic Spectrum

14 Absorption vs. Reflection

15 Chloroplasts REFLECTING Green Light
White light Refracting prism Chlorophyll solution Photoelectric tube Galvanometer 100 The high transmittance (low absorption) reading indicates that chlorophyll absorbs very little green light. Slit moves to pass light of selected wavelength Green light

16 Chlorophyll ABSORBING Blue light to power photosynthesis
White light Refracting prism Chlorophyll solution Photoelectric tube 100 Slit moves to pass light of selected wavelength The low transmittance (high absorption) reading indicates that chlorophyll absorbs most blue light. Blue light

17 Chloroplasts absorbing the blue and the red light waves
Chloroplasts absorbing the blue and the red light waves. The green is NOT being absorbed.

18 Chlorophyll Molecule (How many electrons are in Mg’s outer shell
Chlorophyll Molecule (How many electrons are in Mg’s outer shell?) Hint: Look at the Periodic Table.

19 Answer: 2 These 2 electrons will be important!

20 Photosystem and collecting sunlight energy.

21 Photosystems 1 and 2

22 Where are the photosystems located?

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