PHOTOSYNTHESISI. Metabolism A. Two things need –         Energy (E)      FOOD         Raw materials
B. Ways to get food• 1. Autotroph – Primary producer      a. photosynthesis                   LIGHT 6CO2 + 12H2O          ...
2. Heterotroph  a. Digestion   Polymers                Monomers b. Cellular RespirationC6H1206 + 6O2                      ...
II. General Plant – location of photosynthesis  A. Basic organs and their functions.             LEAFPhotosynthesis (C02 i...
cuticle                 upper epidermisB. Leaf             palisade Mesophyll                                             ...
C. Chloroplast Structure              granum                           stromaouter membInner memb  spaceInner memb        ...
III. PhotosynthesisA. General    EQUATION            LIGHT6 CO2 + 12 H2O                          C6H12O6 + 6 O2 + 6 H2O  ...
.1 Source of the material     a. CO2 - stomata     b. H2O – xylem in roots from soil     c. Light – part of electromagneti...
LIGHT400nm                                     700nmV       I       B      G        Y     O      RWhat happens to light wh...
Light        Reflected                     lightChloroplastAbsorbedlight           Transmitted                light
2. Two metabolic pathways         LIGHT DEPENDENT                    LIGHT INDEPENDENT                            16 ADP +...
LIGHT DEPENDENT          LIGHT INDEPENDENTIN:  THYLAKOID                STROMAUSES: WATER, LIGHT              CO2, ATP, NA...
B. LIGHT DEPENDENT REACTIONS1.   OCCURS     PHOTOSYSTEMS = EMBEDDED IN THYLAKOID MEMBRANE2.   CHLOROPHYLL     KEY LIGHT CA...
b. GENERAL ABOUT PHOTOSYSTEMSb1. THEY ARE EACH A LIGHT HARVESTING COMPLEXb2. GROUP OF MOLECULES (PROTEINS, CHLOROPHYLL, AC...
Photosystem structure                                                     ATP SYNTHASE T H                e-              ...
ATP SYNTHASET                               e- TR            e-                        ANSPH              T               ...
ATP SYNTHASET                                  e- TR            e-                           ANSPH              T         ...
H+ H+ H+ H+OUTSIDE THYLAKOID                         H+ H+                              H+ H+                             ...
H+ H+ H+ H+                  H+ H+                     H+ H+                                                     ATP SYNTH...
H+ H+ H+ H+                                                         16 ATP                  H+ H+                     H+ H...
H+ H+ H+ H+                                                                16 ATP                  H+ H+                  ...
C. LIGHT INDEPENDENT REACTION     (CALVIN-BENSON CYCLE)1.   OCCURS              STROMA2. REQUIRES (USES)     material     ...
NAMING COMPOUNDS                                 CO2   H2ORIBULOSE BIPHOSPHATE                           PGA       RuBP   ...
COUNTING CARBONS - 1 ROTATION                 2. ADD 1 ONE CARBON MOLECULE                                 1              ...
COUNTING CARBONS - 6 ROTATIONS                 2. ADD 6 ONE CARBON MOLECULE                        6 X 1 = 6              ...
1. photosynthesis
1. photosynthesis
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1. photosynthesis

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1. photosynthesis

  1. 1. PHOTOSYNTHESISI. Metabolism A. Two things need – Energy (E) FOOD Raw materials
  2. 2. B. Ways to get food• 1. Autotroph – Primary producer a. photosynthesis LIGHT 6CO2 + 12H2O C6H1206 + 6O2 + 6H20 b. cellular respiration C6H1206 + 6O2 6CO2 + 6H2O 36-38 ATP
  3. 3. 2. Heterotroph a. Digestion Polymers Monomers b. Cellular RespirationC6H1206 + 6O2 6CO2 + 6H2O 36-38 ATP
  4. 4. II. General Plant – location of photosynthesis A. Basic organs and their functions. LEAFPhotosynthesis (C02 in/O2 out) STEM support ROOT anchor, store materials, uptake water
  5. 5. cuticle upper epidermisB. Leaf palisade Mesophyll xylem spongy pholem lower epidermis VASCULAR BUNDLE – bundle sheath around stoma guard cell
  6. 6. C. Chloroplast Structure granum stromaouter membInner memb spaceInner memb thylakoid
  7. 7. III. PhotosynthesisA. General EQUATION LIGHT6 CO2 + 12 H2O C6H12O6 + 6 O2 + 6 H2O air soil sun(stomata) (xylem) electromagnetic spectrum
  8. 8. .1 Source of the material a. CO2 - stomata b. H2O – xylem in roots from soil c. Light – part of electromagnetic spectrum
  9. 9. LIGHT400nm 700nmV I B G Y O RWhat happens to light when it hits? Transmit Reflect Absorb
  10. 10. Light Reflected lightChloroplastAbsorbedlight Transmitted light
  11. 11. 2. Two metabolic pathways LIGHT DEPENDENT LIGHT INDEPENDENT 16 ADP + 16Pi 16 ATP 12 NADP + 12H 12 NADPH12 H2O 24 H+ + 6O2
  12. 12. LIGHT DEPENDENT LIGHT INDEPENDENTIN: THYLAKOID STROMAUSES: WATER, LIGHT CO2, ATP, NADPHPRODUCES: HIGH ENERGY COMPOUNDS GLUCOSE
  13. 13. B. LIGHT DEPENDENT REACTIONS1. OCCURS PHOTOSYSTEMS = EMBEDDED IN THYLAKOID MEMBRANE2. CHLOROPHYLL KEY LIGHT CAPTURING MOLECULE ABSORBS LIGHT IN WAVELENGTHS OF RED, BLUE, VIOLET3. ACCESSORY PIGMENTS CAROTENOIDS AND PHYCOCYANINS4. PHOTOSYSTEMS – TWO DIFFERENT ONES a. Types PHOTOSYSTEM I PHOTOSYSTEM II
  14. 14. b. GENERAL ABOUT PHOTOSYSTEMSb1. THEY ARE EACH A LIGHT HARVESTING COMPLEXb2. GROUP OF MOLECULES (PROTEINS, CHLOROPHYLL, ACCESSORY PIGMENTS, e- CARRIER MOLECULES) THAT WORK TOGETHER TO HARVEST LIGHT INTO HIGH ENERGY COMPOUNDSb3. STRUCTURE - 2 PARTS • LIGHT HARVESTING COMPLEX = 300 CHLOROPHYLL & ACCESSORY • e- TRANSPORT CHAIN = SERIES OF e- CARRIER MOLECULES IN MEMBRANE
  15. 15. Photosystem structure ATP SYNTHASE T H e- T RA e- TR N ANSP Y CH SPO O CHAI RT AIN R N L T A K O I D Rxn Ctr P700 M Rxn Ctr P680 E M B Photosystem II Photosystem I
  16. 16. ATP SYNTHASET e- TR e- ANSPH T O CHAI RT RA NY N CH SPOL AIN R TAKOID Rxn Ctr P700M Rxn Ctr P680EMB Photosystem II Photosystem I
  17. 17. ATP SYNTHASET e- TR e- ANSPH T O CHAI RT RA NY N CH SPOL AIN R TA 2e-K 2e-OID Rxn Ctr P700M Rxn Ctr P680EMB Photosystem II Photosystem I
  18. 18. H+ H+ H+ H+OUTSIDE THYLAKOID H+ H+ H+ H+ ATP SYNTHASE T H Y L A 2e- K 2e- O I D Rxn Ctr P700 M Rxn Ctr P680 E M B Photosystem II Photosystem I INSIDE THYLAKOID
  19. 19. H+ H+ H+ H+ H+ H+ H+ H+ ATP SYNTHASETHYLA 2e-K 2e-OIDME 12H2OMB 24H+ + 6O2 Photosystem II Photosystem I
  20. 20. H+ H+ H+ H+ 16 ATP H+ H+ H+ H+ 16 ADP + P ATP SYNTHASETHYLA 2e-K 2e-OIDME 12H2OMB 24H+ + 6O2 Photosystem II Photosystem I
  21. 21. H+ H+ H+ H+ 16 ATP H+ H+ 12 NADPH 12 NADP + 12 H H+ H+ 16 ADP + P ATP SYNTHASETHYLA 2e-K 2e-OIDME 12H2OMB 24H+ + 6O2 Photosystem II Photosystem I
  22. 22. C. LIGHT INDEPENDENT REACTION (CALVIN-BENSON CYCLE)1. OCCURS STROMA2. REQUIRES (USES) material from CO2 Air ATP & NADPH Light Dependent RIBULOSE BIPHOSPHATE (RuBP) In chloroplast ENZYMES In membranes
  23. 23. NAMING COMPOUNDS CO2 H2ORIBULOSE BIPHOSPHATE PGA RuBP G3P GLUCOSE
  24. 24. COUNTING CARBONS - 1 ROTATION 2. ADD 1 ONE CARBON MOLECULE 1 3. BREAKS INTO TWO THREE CARBON1. HAVE 1 FIVE CARBON MOLECULE MOLECULES 5 6 5. NEED TO REGENERATE 4. REARRANGES INTO TWO STARTING FIVE CARBON DIFFERENT THREE MOLECULE SO REMOVE 1 CARBON MOLEC. CARBON 6 1 6. NOT YET
  25. 25. COUNTING CARBONS - 6 ROTATIONS 2. ADD 6 ONE CARBON MOLECULE 6 X 1 = 6 3. BREAKS INTO TWELVE THREE CARBON1. HAVE 6 FIVE CARBON MOLECULE MOLECULES 6 X 5 = 30 12 X 3 = 36 ATP ADP + P NADPH NADP + H 5. NEED TO REGENERATE 4. REARRANGES INTO THE SIX STARTING TWELVE DIFFERENT FIVE CARBON MOLEC THREE CARBON MOLEC. SO REMOVE SIX CARBONS 12 X 3 = 36 – 6 = 30 36 6. GLUCOSE

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