1. Photosynthesis

2. Photosynthesis

3. Which of the following is a product of photosynthesis?
Water
Glucose
Carbon Dioxide
Sunlight

4. Oxygen and carbon dioxide Water and carbon dioxide
In addition to sunlight, what are the other reactants for the process of photosynthesis?
Water and oxygen
Water and glucose
Oxygen and carbon dioxide
Water and carbon dioxide

5. Pigments of Photosynthesis
Pigments are molecules that absorb specific wavelengths (energies) of light and reflect all others.
Chlorophyll is the main pigment in charge of capturing the energy from sunlight.

6. Why do plants look green? THEY RELFECT GREEN LIGHT!!!
Chlorophyll a absorbs …………….. light best.
Chlorophyll b absorbs ……………. light best.
Why do plants look green?
THEY RELFECT GREEN LIGHT!!!

7. Chloroplast Structure

8. Chlorophyll is a pigment in the chloroplast that
stores and releases energy
absorbs sunlight
Carries high energy electrons
Makes glucose

9. Chloroplasts do not contain which of the following structures?
Mitochondria
Thylakoids
Stroma
Chlorophyll

10. Predation Metabolism Cell Respiration Photosynthesis
What is the process in which autotrophs trap the energy from the sun and store this energy in molecules such as glucose.
Predation
Metabolism
Cell Respiration
Photosynthesis

11. 1.Write down 3 observations of the diagram below.
2. Share with a partner.
3. Share with the class! Discuss!!
H2O

12. Remember ATP?? Compound that cells use to store and release energy ATP
Adenosine triphosphate
3 phosphate groups
ADP
Adenosine diphosphate
2 phosphate groups
Compound that cells use to store and release energy

13. Chemical Energy and ATP

14. Electron Carrier Molecule
Electron Carrier Molecules
Compound that can accept a pair of high energy electrons and transfer them, along with most of their energy to another molecule
One way the sunlight can be trapped in a chemical form and use it to build glucose for the plant cell
Example:
NADP+ = accepts and holds 2 high energy electrons along with a hydrogen ion (H+)
When NADP+ accepts 2 electrons and a H+ it becomes NADPH

15. Photosynthesis: Step 1 – Light-Dependent ReactionIN
Sunlight
Water
ADP
NADP+
OUT
Oxygen
ATP
NADPH
Takes place in Thylakoids.
Chlorophyll absorbs light energy from the sun.
Water is then split into hydrogen (H) and oxygen (O).
The oxygen is released to the atmosphere.
Produces NADPH and ATP for the Calvin Cycle (step 2)!
H2O

16. Photosynthesis: Step 2 – Light-Independent Reaction
OUT
Carbon Dioxide ATP
Glucose
NADP+
NADPH
ADP
Takes place in Stroma.
Also called the Calvin Cycle or Dark Reactions.
CO2 (carbon dioxide) combines with hydrogen (H) to form C6H12O6 (glucose).
The NADPH made in the light-dependent reactions provides the Hydrogen for the glucose
The ATP made in light-dependent reactions provides the energy for the Calvin Cycle to occur.

17. What affects the rate of photosynthesis?
Amount of :
- sunlight
- CO2
- H2O
- temperature
All the reactions of photosynthesis are controlled by enzymes. Temperatures above or below the optimum temperature will slow down the chemical reactions.

18. GET YOUR CLICKERS!

19. Energy from the sun is collected during the:
Light-independent reactions
Light-dependent reactions
Thylakoid reactions
Krebs Cycle

20. Glucose is created during this step of photosynthesis.
Light-independent reaction
Light-dependent reaction
Thylakoid reactions
Krebs Cycle

21. Concentration of oxygen Concentration of carbon dioxide
Which of the following would not directly impact the growth of a plant?
Spectrum of light
Concentration of oxygen
Concentration of carbon dioxide
Availability of water
Temperature

22. NADPH Sugars Hydrogen Ions ATP
Which of the following is NOT produced in the light-dependent reactions?
NADPH
Sugars
Hydrogen Ions
ATP