1. What product is made in the light dependent reactions?

2.What product is made in the light independent reactions?

3.What does this product get converted into?

• Describe why ATP is useful for cells

Photosynthesis

• Describe why ATP is useful for cells: ATP stores energy in the bond between the second and third phosphate, and ADP can be recycled

Photosynthesis

• Describe the process and formula of photosynthesis, including the transfer of energy that occurs

Photosynthesis

• Describe the process and formula of photosynthesis, including the transfer of energythat occurs• Light dependent and independent

reactions

• 6CO2 + 6H2O -> C6H12O6 + 6O2

• Sun -> ATP/NADPH -> Glucose

Photosynthesis

• Describe the role of pigments in photosynthesis

Photosynthesis

• Describe the role of pigments in photosynthesis: pigments, like chlorophyll, capture energy from sunlight to start the light dependent reactions

Photosynthesis

• Explain the function of electron carrier molecules

Photosynthesis

• Explain the function of electron carrier molecules: electron carrier molecules (like NADPH) transport electrons from one reaction to another, powering the light independent reactions

Photosynthesis

• Describe the light-dependent reactions

Photosynthesis

• Describe the light-dependent reactions:

1. Sun excites electrons in water

2. Electons release energy, which is used to make ATP

3. Electrons captured by NADPH

4. O2 is released

Photosynthesis

• Describe the light-independent reactions

Photosynthesis

• Describe the light-independent reactions:

1. Energy from ATP and NADPH is used to convert CO2 into G3P sugar

2. ADP and NADP+ are recycled

3. G3P is converted into glucose AND SOMETIMES OTHER MOLECULES OF LIFE

Photosynthesis

• Describe the factors that affect photosynthesis

Photosynthesis

• Describe the factors that affect photosynthesis:

1. Temperature • too hot = enzymes denature

• too cold = root damage

2. Light (energy)

3. Carbon dioxide (matter)

4. Water (matter)

Photosynthesis

• Describe where organisms get energy

Photosynthesis

• Describe where organisms get energy:

• Autotrophs make their own

• Photosynthesis (sun)

• Chemosynthesis (chemicals)

• Heterotrophs consume other organisms

Photosynthesis

• Page 37 Write the answers to the pre-lab,

data, and analysis questions

• ONLY ON THIS PAGE

Photosynthesis Leaf Lab

• Why do leaves change color in the fall? http://www.untamedscience.com/biology/plants/why-leaves-change-color/

Photosynthesis Leaf Lab

• HINT: Remember that when you vacuumed the syringe you sucked all of the gases out of the spinach

Spinach Lab

1. Leaf Lab Analysis

2. Spinach Analysis

• Class data:

Both labs are due

on Tuesday, Dec. 11th

To-do:

TIME LIGHT DARK

1 0 0

2 0 0

3 0 0

4 1 0

5 2 0

6 3 0

7 3 0

8 4 0

9 5 0

10 5 0