1. Cellular respiration

2. Cellular respiration
The body changes carbohydrates into glucose after a meal
When cells need energy, they break down glucose and use oxygen from lungs to make energy (ATP) in the mitochondria of the cell
This is called cellular respiration
The respiration equation:
C6H O CO2 + 6H2O + energy

4. Stages of respiration stage 1
Glucose molecules are broken down in the cytoplasm
No oxygen is used
Very little energy is released

5. Stages of respiration stage 2
Oxygen is used
Glucose and oxygen are broken down in the mitochondria
Lots of energy is released in this stage of respiration

6. Comparing photosynthesis and respiration
Photosynthesis and respiration keep levels of carbon dioxide and oxygen fairly constant in the atmosphere
During photosynthesis, carbon dioxide and water produce sugar and oxygen
During respiration, glucose and oxygen produce CO2 and water.
They are opposite equations.

7. fermentation
A. Fermentation produces energy for the cell without using Oxygen
2 Types of Fermentation: alcoholic and lactic acid
Alcoholic Fermentation
1. Yeast produces energy using alcoholic fermentation
2. Sugars are broken down and alcohol, CO2, and small amounts of energy are produced.
(EX.) Bread: the CO2 in yeast causes dough to rise and makes the air pockets seen in baked bread
(EX.) Beer: bubbles in beer and wine are caused by CO2 that is produced during fermentation

8. Fermentation (Con’T) Lactic Acid Fermentation
1. During heavy exercise, cells use up oxygen, body makes energy without oxygen by pulling energy from muscles in a process called fermentation.
2. This produces energy and the by product lactic-acid.
3.Lactic acid builds up and makes muscles ache, and feel weak and sore.

10. Do the following WebQuest to further investigate photosynthesis - Show Ms. Jolly and Ms. Huckaby what you know! Cellular Respiration