PHOTOSYNTHESIS What is the purpose of photosynthesis?

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? Where is the chemical bond broken to release energy?

How is energy released from ATP? Phosphate Bond Breaks Where is the bond broken to release energy: At the bond between 2 nd & 3 rd Phosphates

Why is ATP compared to a battery?

ATP contains energy like a battery ADP + P (Uncharged Battery) ATP (Charged Battery)

What color wavelength is best for photosynthesis?

BLUE Absorbed Light is Used Light

Why is green light not good for photosynthesis?

Green is not absorbed It is reflected by the green chlorophyll (pigment/protein)

Which wavelengths have more energy? Longer? or Shorter?

Which wavelengths have more energy? Longer or Shorter

What are pigments? What do pigments do?

What are pigments? What do pigments do? Pigments are proteins! 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?

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? _____+ _____+ _____ → _______ + ___ Use this to help you…. REACTANTS → PRODUCTS

What is the equation for photosynthesis? REACTANTS → PRODUCTS

What is oxygen in the photosynthesis process?

What is oxygen in the photosynthesis process? WASTE PRODUCT!!

Scientists Who Helped Develop the Photosynthesis Equation…

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Who conducted the experiment that determined plant growth needed water and was important part of photosynthesis equation?

Van Helmont CO2 + H₂O → Sunlight → C6H12O6 + O2 Van Helmont’s experiment concluded that the plant must have gotten its additional mass from H2O since that was all that the plant received.

Who conducted the experiment that determined plants release oxygen (O₂) and was an important part of the photosynthesis equation?

Priestly (Think: Priests put candles in churches) Priestly found the plant released OXYGEN from his experiment keeping mouse and flame alive. CO2 + H2O → Sunlight → C6H12O6 + O₂

Who conducted the experiment that determined plants need sunlight and was an important part of the photosynthesis equation?

Ingenhouz (“I” for light) Ingenhouz repeated Priestly’s experiment but tried it with and without sunlight to see if that was necessary. He found sunlight was an important part of photosynthesis. CO2 + H2O → Sunlight → C6H12O6 + O2

Who conducted the experiment that determined that photosynthesis had a cycle that created glucose from CO₂ and was an important part of the photosynthesis equation? ? GLUCOSE CO₂

Calvin Calvin came up with the Calvin Cycle and showed how plants take ATP and NADPH to change CO2 →C2H12O6 (glucose) CO2 + H2O → Sunlight → C6H12O6 + O2 GLUCOSE CO₂

What is this organelle called?

?

SUNLIGHT

?

H₂OH₂O

? H₂OH₂O

H₂OH₂O Thylakoids

H₂OH₂O SUNLIGHT Thylakoids ?

H₂OH₂O SUNLIGHT Thylakoids O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids O₂ (waste product) ?

H₂OH₂O SUNLIGHT Thylakoids ATP O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP ? O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH ? O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH CO₂ O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH ? CO₂ O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH Calvin Cycle CO₂ O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH Calvin Cycle CO₂ ? O₂ (waste product)

H₂OH₂O SUNLIGHT Thylakoids ATP NADPH Calvin Cycle CO₂ C₆ H₁₂ O₂ (glucose) O₂ (waste product)

Light Dependent ReactionLight Independent Reaction Calvin Cycle Power POWER Same Name

Electron Transport Chain takes place in the Thylakoid Membrane

Light blows up H₂O into H⁺ and е⁻ to help make NADPH & ATP: energy that fuels the Calvin Cycle Electron Transport Chain Glucose

10 PGAL Where does the Calvin Cycle (Light Independent Reaction) take place? 2 PGAL 12 PGA RuBP GLUCOSE CO₂ 12 PGAL

10 PGAL Where does the Calvin Cycle (Light Independent Reaction) take place? 2 PGAL 12 PGA RuBP GLUCOSE CO₂ 12 PGAL

10 PGAL 2 PGAL 12 PGA RuBP GLUCOSE CO₂ 12 PGAL How many times does the Calvin Cycle go around to make glucose (C₆H₁₂O₆)?

2 PGAL 12 PGA RuBP GLUCOSE CO₂ 2 PGAL’S COMBINE TO FORM GLUCOSE 12 PGAL 10 PGAL