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PHOTOSYNTHESIS. What is the purpose of photosynthesis? To make: GLUCOSE (food). Carbon + Hydrogen + Oxygen. What make their own food? AUTOTROPHS (PRODUCERS) Example: Plants. What have to obtain their food? HETEROTROPHS (CONSUMERS)
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PHOTOSYNTHESIS What is the purpose of photosynthesis? To make: GLUCOSE (food) Carbon + Hydrogen + Oxygen
What make their own food? AUTOTROPHS (PRODUCERS) Example: Plants
What have to obtain their food? HETEROTROPHS (CONSUMERS) Examples: Mushrooms, cows, bacteria, humans, fish, birds
How is energy released from ATP? Phosphate Bond Breaks • Where is the bond broken to release energy: At the bond between 2nd & 3rd Phosphates
ATP contains energy like a battery ADP + P (Uncharged Battery) ATP (Charged Battery)
Why is green light not good for photosynthesis? Green is not absorbed It is reflected by the green chlorophyll (pigment/protein) Absorbed light is useable light!
What are pigments? Pigments are proteins! What do pigments do? Pigments absorb light!
What makes plants green? CHLOROPHYLL(Pigment)
What 3 things do I need to make my flower grow which are the same 3 things (reactants) needed for photosynthesis? • Sunlight • H₂O • CO₂
What is the equation for photosynthesis? REACTANTS → PRODUCTS
Van Helmont CO2 + H₂O→ Sunlight → C6H12O6 + O2
Priestly (Think: Priests put candles in churches)
CO₂ GLUCOSE Calvin CO2 + H2O → Sunlight → C6H12O6 + O2
H₂O SUNLIGHT
H₂O SUNLIGHT Thylakoids
H₂O SUNLIGHT Thylakoids O₂ (waste product)
H₂O SUNLIGHT Thylakoids ATP O₂ (waste product)
H₂O SUNLIGHT Thylakoids ATP NADPH O₂ (waste product)
H₂O CO₂ SUNLIGHT Thylakoids ATP NADPH O₂ (waste product)
H₂O CO₂ SUNLIGHT Thylakoids Calvin Cycle ATP NADPH O₂ (waste product)
H₂O CO₂ SUNLIGHT Calvin Cycle Thylakoids ATP NADPH O₂ (waste product) C₆ H₁₂ O₂ (glucose)
Power Calvin Cycle Same Name POWER LightDependent Reaction Light Independent Reaction
Electron Transport Chain Light blows up H₂O into H⁺ and е⁻ to help make NADPH & ATP: energy that fuels the Calvin Cycle Glucose
Where does the Calvin Cycle (Light Independent Reaction) take place? Stroma CO₂ 12 PGA RuBP 10 PGAL 12 PGAL 2 PGAL GLUCOSE