1. Cell Respiration

2. Photosynthesis Light 6CO2 + 6H2O → C6H12O6 + 6O2
The process by which plants are able to convert solar energy into chemical energy
Chlorophyll (the green pigment inside plants and some algae) absorbs energy in sunlight and combines CO2 and H2O to produce sugar and oxygen
Light
6CO2 + 6H2O → C6H12O6 + 6O2

3. Consuming Food Plants produce and consume carbohydrates (sugars)
Fats and proteins are also created and used for growth and development
All organisms that do not produce their own food must consume different organisms to obtain the carbohydrates, fats, and proteins

4. Respiration
All organisms respire, which is different than breathing, but it does require oxygen.
Food energy and oxygen is broken down into useable energy, known as ATP, and carbon dioxide is released.
Chemical energy is converted to mechanical and heat energy.

5. What organisms use cell respiration?
Anything that is not an autotrophs, and does not make its own food source.
All heterotrophs, consumers, use cell respiration to produce energy.

6. Think of your car… Fuel Energy conversion Waste products Heat energy
Carbon dioxide
Gasoline  
Combustion
Kinetic energy of movement
Figure 5.10_1 Energy transformations in a car and a cell (part 1)
Water
Oxygen
Energy conversion in a car 6

7. A cell is a tiny engine Fuel Energy conversion Waste products
Heat energy
Cellular respiration
Glucose
Carbon dioxide  
ATP
ATP
Figure 5.10_2 Energy transformations in a car and a cell (part 2)
Oxygen
Energy for cellular work
Water
Energy conversion in a cell 7

8. Where does cell respiration take place?
Cell respiration takes place in each individual body cell. Body cells are found in all animals, plants, fungi, and most protists.
Inside each cell are multiple mitochondria.
Mitochondria is where cell respiration takes place.

9. Mitochondria in a cell

10. Respiration Formula C6H12O6 + 6O2 → 6CO2 + 6H2O +
Respiration takes place in the mitochondria of a cell using a chemical called ATP – sugar is broken down into CO2 and H2O, releasing energy
Reactants: material that goes in
C6H12O6 + 6O2 → 6CO2 + 6H2O +
Products: materials that come out
Energy
(ATP)

11. Break down the formula
C6H12O6 + 6O2 → Sugar + Oxygen 6CO2 + 6H2O + Energy Carbon Dioxide + Water + ATP

12. Beyond the basics

13. Compare Photosynthesis to Cell Respiration
Light
6CO2 + 6H2O → C6H12O6 + 6O2
NOW FLIP IT!
C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy
Solar  Chemical  Mechanical

14. Photosynthesis & Cell Respiration

15. Compare Photosynthesis to Cell Respiration

16. The Path of Energy Solar energy Mechanical energy Chemical energy
Chemical, Mechanical, & Heat energy
Chemical energy, Heat energy