1. Photosynthesis
SPI.3.3 Compare and contrast photosynthesis and cellular respiration in terms of energy transformation.

2. Energy Ability to do work Autotroph Heterotroph = creates own
= obtains from food
I make them pick out the autotrophs and heterotrophs in the picture

3. ATP
Adenosine TriPhosphate
Used by all cells for energy

4. How Does ATP release energy?
ATP breaks off a phosphate which releases energy

5. (Adenosine Triphosphate)
ATP
SNAP
adenosine P P P
Here is ATP
(Adenosine Triphosphate)

6. (Adenosine Diphosphate)
I’m free!!!!
ADP
adenosine P P P
We get ADP
(Adenosine Diphosphate)
Tadaaa!!!

7. ADP
Will be recharged by adding a phosphate

8. What does a plant use to obtain its mass?
Use the second video “Lessons from Thin Air”. Begin at 3:28 & end at 4:52.
Show the students even harvard grads can’t answer this question completely.
What does a plant use to obtain its mass?

9. Photosynthesis
Capturing light energy from the sun and changing it into food
Performed by plants, algae, & some bacteria
Supplies food for other organisms
Video on photosynthesis experiments in heading. Helps to explain the previous slide

10. Chloroplast
Chloroplast is the organelle where chlorophyll is housed

11. Pigments
Absorb light
Two main pigments = Chlorophyll a & Chlorophyll b
Chlorophyll = Green color

12. Why is Chlorophyll Green?
Absorbs violet & red λs
λ = wavelength
Reflects green λs

13. Photosynthesis Formula
Sunlight
6CO2 + 6H2O
C6H12O
Chlorophyll
Carbon Water Glucose Oxygen
Dioxide

14. Two Types of Reactions Light Dependent Reactions
Light Independent Reactions
Calvin Cycle

15. Released to atmosphere
Light Dependent Rxn
Thylakoid – contains chlorophyll
Uses light energy to break down water to produce energy & oxygen
Released to atmosphere
Calvin Cycle

16. Enters through stomata
Light Independent Rxn
AKA Calvin Cycle
Stroma
Uses energy from light dependent rxns & CO2 to make sugar
TED Ed video click on picture
Enters through stomata

17. Calvin Cycle is Dependent on Light Rxn
Why?
Needs the energy from thylakoids rxn to supply energy to make the sugar

18. Affects on the Rate of Photosynthesis
Water
Temperature
0 – 35 ºC = best enzyme function
Intensity of light