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Pre – AP Biology Photosynthesis 3.1 Part 1.

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Presentation on theme: "Pre – AP Biology Photosynthesis 3.1 Part 1."— Presentation transcript:

1 Pre – AP Biology Photosynthesis 3.1 Part 1

2 Autotroph - Plants

3 Autotroph - Algae

4 Autotroph - Phytoplankton

5 Autotroph - Bacteria

6 Heterotroph - Animal

7 Heterotroph - Fungus

8 Leaf and Chloroplast structure

9 Chloroplast See the green light being reflected

10 Chloroplast structure

11 Photosynthesis (Light Reaction) Making the batteries ATP and NADPH

12 Photosynthesis (Calvin Cycle) Using the batteries to power the making of sugar

13 Photosynthesis chemical reaction (Remember… conservation of matter
Photosynthesis chemical reaction (Remember… conservation of matter.) The water splits using the sunlight energy; not the CO2 6 CO2 + 6 H2O  C6H12O6 + 6 O2 + Heat

14 Electromagnetic Spectrum which contains light waves

15 Chlorophyll absorbs the blue but reflects the green.

16 Absorption vs. Reflection

17 Absorption = Action (work being done)

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

19 Answer: 2 Those 2 electrons will leave Mg and enter into the Electron Transport Chain.

20 Photosystem and collecting sunlight energy and funneling it into the Mg of Chlorophyll A. (Remember, excited electrons can “jump” away from the atom.)

21 Photosystems 1 and 2 Excited electrons “jumping” away into the Electron Transport Chain 2 at a time.

22 Pre – AP Biology Photosynthesis 3.1 Part 2

23 Light Reaction of Photosynthesis

24 Where it is occurring? On the inner Thylakoid membrane where the photosystems are located.

25 Non-cyclic electron flow Water splits to release 2 electrons This replaces the 2 electrons lost by the Mg of the photosystem.

26 See the protons (H+) being actively pumped into the Thylakoid.

27 Pumping the H+ (protons) into a confined space to build up potential energy. See the similarity in structure and function?

28 Cyclic electron flow Electrons start and finish at the same point.

29 Turning potential energy into kinetic energy to power ATP production by phosphorylation

30 Photosynthesis (Calvin Cycle) Using the batteries to power the making of sugar

31 Pre – AP Biology Photosynthesis 3.1 Part 3

32 Calvin Cycle Part 1 Bringing in the CO2 to begin making sugar

33 Calvin Cycle Step 2: Using or batteries to make G3Ps Take 1 G3P to build a sugar molecule.

34 Calvin Cycle step 3: Recycle remaing G3Ps back to RuBP to start again
Calvin Cycle step 3: Recycle remaing G3Ps back to RuBP to start again. Cycles goes around twice to make 1 sugar molecule.

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