PHOTOSYNTHESIS What is the purpose of photosynthesis PHOTOSYNTHESIS

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?

What make their own food? AUTOTROPHS (PRODUCERS) Example: Plants

What have to obtain their food?

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?

What color wavelength is best for photosynthesis? Absorbed Light is Used Light BLUE

Why is green light not good for photosynthesis?

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?

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 CO 2 + H₂O → Sunlight → C 6 H 12 O 6 + O 2 Van Helmont’s experiment concluded that the plant must have gotten its additional mass from H 2 O 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) CO 2 + H 2 O → Sunlight → C 6 H 12 O 6 + O₂ Priestly found the plant released OXYGEN from his experiment keeping mouse and flame alive.

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

Ingenhouz (“I” for light) CO 2 + H 2 O → Sunlight → C 6 H 12 O 6 + O 2 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.

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? CO₂ ? GLUCOSE

CO₂ GLUCOSE Calvin CO 2 + H 2 O → Sunlight → C 6 H 12 O 6 + O 2 Calvin came up with the Calvin Cycle and showed how plants take ATP and NADPH to change CO 2 →C 2 H 12 O 6 (glucose)

What is this organelle called?

SUNLIGHT

? SUNLIGHT

H₂O SUNLIGHT

H₂O SUNLIGHT ?

H₂O SUNLIGHT Thylakoids

H₂O SUNLIGHT Thylakoids ?

H₂O SUNLIGHT Thylakoids O₂ (waste product)

H₂O SUNLIGHT Thylakoids ? O₂ (waste product)

H₂O SUNLIGHT Thylakoids ATP O₂ (waste product)

H₂O SUNLIGHT Thylakoids ATP ? O₂ (waste product)

H₂O SUNLIGHT Thylakoids ATP NADPH O₂ (waste product)

H₂O ? SUNLIGHT Thylakoids ATP NADPH O₂ (waste product)

H₂O CO₂ SUNLIGHT Thylakoids ATP NADPH O₂ (waste product)

H₂O CO₂ Thylakoids ? SUNLIGHT ATP NADPH O₂ (waste product)

H₂O CO₂ SUNLIGHT Thylakoids ATP NADPH O₂ (waste product) Calvin Cycle

H₂O CO₂ SUNLIGHT Calvin Cycle Thylakoids ATP NADPH O₂ (waste product) ?

H₂O CO₂ SUNLIGHT Calvin Cycle Thylakoids ATP NADPH O₂ (waste product) C₆ H₁₂ O₂ (glucose)

r we Po Calvin Cycle Same N ame R WE PO Light Dependent Reaction Light Independent Reaction

Electron Transport Chain takes place in the Thylakoid Membrane

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? CO₂ 12 PGA Ru. BP 10 PGAL 12 PGAL GLUCOSE

Where does the Calvin Cycle (Light Independent Reaction) take place? Stroma CO₂ 12 PGA Ru. BP 10 PGAL 12 PGAL GLUCOSE

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

How many times does the Calvin Cycle go around to make glucose (C₆H₁₂O₆)? CO₂ 12 PGA Ru. BP 10 PGAL 12 PGAL GLUCOSE 2 PGAL’S COMBINE TO FORM GLUCOSE