1. CELLULAR RESPIRATION

2. INTRODUCTION All cells must have energy to function.
Glucose is a cell’s source of energy. In other words, glucose is cell food.
Glucose is often stored in organisms as a carbohydrate called starch.

3. INTRODUCTION
Many glucose molecules link together in order to from one starch molecule.
In order to use starch, cells must break it down into the smaller glucose molecules.

4. INTRODUCTION
Usable chemical energy is stored in the bonds of glucose molecules.
Cells can release energy in 2 basic processes: Cellular respiration and Fermentation.

5. CELLULAR RESPIRATION
In cellular respiration, cells use oxygen to release energy stored in the bonds of glucose molecules.
Most of the energy used by the cells in your body is provided by cellular respiration.

6. LOCATION
Cellular respiration takes place in organelles called mitochondria.
Both plant cells and animal cells contain mitochondria, so both plant and animal cells release energy through cellular respiration.

7. A CHEMICAL CHANGE Reactants Glucose (C6H12O6) from food
Oxygen (O2) from the air

8. A CHEMICAL CHANGE Chemical Reaction
Glucose molecules in the cytoplasm are broken down into smaller molecules.
These smaller molecules enter the mitochondria along with oxygen, where they recombine to form new substances

9. A CHEMICAL CHANGE Products
Energy – some transferred to other molecules and sent to areas of the cell that need it; some released as heat.
Carbon Dioxide (CO2) – released into the air
Water (H2O) used by the organism

10. THE EQUATION
Glucose + Oxygen
Energy Water Carbon Dioxide

11. PUTTING IT ALL TOGETHER
CARBON DIOXIDE
GLUCOSE
MITOCHONDRION
ENERGY
OXYGEN
WATER

12. Cellular Respiration Review

13. What type of cell performs cellular respiration?
Plant cells
Animal cells
Both plant and animal cells 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

14. Why do plant and animal cells perform cellular respiration?
To release energy stored in glucose molecules
To release energy stored in water molecules
To release oxygen and glucose 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

15. What part of plant and animal cells does cellular respiration occur in?
Chloroplasts
Mitochondria
Nucleus 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

16. What does a cell need for cellular respiration?
Carbon dioxide and water
Oxygen and water
Glucose and oxygen 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

17. What is produced during cellular respiration?
Usable energy, carbon dioxide and water
Usable energy and water
Usable energy, carbon dioxide and glucose 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30