1. Photosynthesis & CR EQ: How is energy acquired and used by organisms?
Identify the reactants, products, and basic functions of photosynthesis.
EQ: How is energy acquired and used by organisms?

2. Meet Penny… Penny is Claudel's best friend
What kinds of cells are Penny and Claudel?
What are the three things Penny has that Claudel does not have? Why?

3. plant cells
animal cells

4. Plants are energy producers
Like animals, plants need energy to live
unlike animals, plants don’t need to eat food
to make that energy
Plants make both FOOD & ENERGY

5. How do plants make energy & food?
Plants use the energy from the sun
to make ATP energy and sugars (glucose, sucrose, cellulose, & more)
sun
ATP
sugars

6. Photosynthesis
A process where light energy is captured and used to build SUGARS from carbon dioxide and water
Occurs in the Chloroplasts

7. REVIEW!!!! Photosynthesis is a chemical reaction..
What are the parts of a chemical reaction?
Reactant- goes in
Products – comes out

8. Photosynthesis Equation
 glucose + oxygen
carbon
dioxide
sun
energy
+ water +
(ATP) = used to build the sugar
6CO2
6H2O
C6H12O6
6O2
sun
energy  +
What are the reactants? Box them
What are the products? Circle them
Co2, H2O, sunlight
C6H12O6, O2

9. Chloroplast
Sunlight
Thykaloid
Chlorophyll
Light dependent
Oxygen
Water
ATP
Energy
Light
independent
Sugar
ATP
Carbon Dioxide

10. Light- Dependent & Independent Reactions:
Light- Dependent reactions
Chlorophyll in the thylakoid absorbs energy from sunlight
Water molecules taken in from the roots are broken down and Oxygen is released
Light- Independent reactions
No sunlight energy required
Uses ATP from the light dependent reaction and Carbon Dioxide (CO2) absorbed through the leaf and to produce sugar

12. What do plants need to grow?
Location of Photosynthesis:
chloroplast
Fuels:
sunlight
carbon dioxide
water
The Helpers:
enzymes
Products:
Oxygen
sugar
Make ATP! Make sugar! I can do it all… And no one even notices!
sun
CO2
ATP
enzymes
sugars
H2O

13. What Affects the rate of photosynthesis?
Photosynthesis is a chemical reaction
Photosynthesis has help from enzymes…
What factors affect enzyme activity?
Temp, pH, & concentration
What factor can affect the rate of photosynthesis?
TEMPERATURE!!! ………..Closer to the optimum temperature, rate of photosynthesis increases due to enzymes!

14. So what does a plant need?
Bring In (reactants)
Energy Light from the sun (leaves)
CO2 from the air (leaves)
H2O from the ground (roots)
Lets Out (products)
O2 (escapes from the leaves)
Sugars (food for the plant)
Review: How does the water get from the roots of the plant to the leaves of the plant for photosynthesis?
6CO2
6H2O
C6H12O6
6O2
light
energy  +

15. QKA- in your notebook (pg 35)
The 'light-dependent reactions', or light reactions, are the first stage of photosynthesis, the process by which plants capture and store energy from sunlight. The light- dependent reactions take place on the thylakoid membrane inside a chloroplast. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place. The synthesis of carbohydrates occurs in the stroma of chloroplasts. This process uses what reactants to create carbohydrates?
H2O & CO2 C. C6H12O6
CO2 & O D. O2

16. QKA- on the right side of your notebook (pg 35)
According to the graph, what is the best explanation for the relationship between temperature and the rate of photosynthesis?
As the temperature increases the rate of photosynthesis continually increases
As the temperature increases the rate of photosynthesis continually decreases
As the temperature increases the rate of photosynthesis stays the same.
As temperature increases the rate of photosynthesis increases and then decreases.

17. How would photosynthesis be affected if…..
There was a drought… There were less hours of sunlight than normal…. The carbon dioxide levels in the atmosphere dropped… Drastic change in temperature…

18. One plant says to another, “Are you hungry
One plant says to another, “Are you hungry?”… The other replies, “I could use a light snack.”

19. Ed Puzzle: Photosynthesis
Go to edpuzzle.com
Log into Ed puzzle using the account you created
Complete the photosynthesis Ed Puzzle