1. Photosynthesis and Respiration

2. What is Photosynthesis??
Plants using sunlight (energy), carbon dioxide, and water to make food and oxygen

3. The 2 stages of photosynthesis are:
1) Capturing the sun’s energy

4. The 2 stages of photosynthesis are:
2) Using the sun’s energy to make food

5. What 5 materials does Photosynthesis Require???
Sunlight
Pigments
a. Molecules that absorb sunlight (in the chloroplast the pigment is primarily chlorophyll)

6. What Does Photosynthesis Require???
The Chloroplasts (in the leaves), where photosynthesis takes place!

7. What Does Photosynthesis Require???
Carbon Dioxide
a. Taken in through openings in the leaves called stomata
Water
Taken in through roots in the ground

8. Photosynthesis Equation
In words:
Carbon Dioxide
LIGHT
Water
Oxygen
Glucose
(Food)
(Sugar) 6
CO2 6
H2O
LIGHT
C6H12O6 6 O2

9. Why is it important?
Most organisms get their energy in some way from the process of photosynthesis
Either by consuming plants or eating something that consumed plants

10. Can you think of any place in the world where photosynthesis doesn’t occur?

11. Homework Chloroplast Materials: Products: Water Sunlight
Carbon Dioxide
Sugar
Oxygen

12. Respiration

13. What is Breathing?
Moving air into and out of your lungs, as your diaphragm muscle moves up and down in your chest

14. What is Respiration?
Making ATP (energy) by breaking down food/sugar inside of your cells all over your body
* EVERY LIVING THING RESPIRES… even plants

15. So…how is Respiration different than Breathing?
Breathing occurs at the organism level of organization, respiration occurs at the cell level

16. 2 Types of Respiration Cellular (Aerobic) respiration: requires Oxygen
Fermentation (Anaerobic respiration): Does NOT require Oxygen

17. What does Cellular Respiration Require?
Glucose (food or sugar)
- heterotrophs: organisms that eat their food
- autotrophs: organisms that make their own food
Oxygen
- animals: take in through breathing
- plants: take in through from stomata in leaves

18. What does Aerobic Respiration Require?
Mitochondria
where respiration takes place

19. Aerobic Respiration Equation
In words:
Carbon Dioxide
Glucose
Oxygen
Water
Energy
C6H12O6 6 O2 6
CO2 6
H2O
ATP

20. What do you notice about the Cellular (Aerobic) Respiration Equation
What do you notice about the Cellular (Aerobic) Respiration Equation? Does it look kind of familiar????
Respiration:
Sugar + Oxygen = Carbon Dioxide + Water + Energy
(ATP)
Photosynthesis:
Carbon Dioxide + Water + Energy= Sugar + Oxygen
(Sunlight)

21. Cellular Respiration Sugar Oxygen Mitochondria Carbon Dioxide Water
Materials:
Products:
Mitochondria
Sugar
Oxygen
Carbon
Dioxide
Water
ATP

22. Fermentation (does not require oxygen)
Lactic acid fermentation:
Occurs when your muscles are not getting enough oxygen, so they begin to have a burning sensation (b/c of lactic acid) and fatigue

23. Fermentation Carbon Dioxide fermentation:
Bacteria in cheese or yeast in bread release carbon dioxide and cause the bread to rise and the holes in the cheese