1. Respiration Fulfilling Your Energy Needs

2. Cellular Respiration Within humans: Using oxygen and glucose create ATP ATP = body’s chemical energy source for many of your activities Requires: Intake of oxygen, glucose Circulation of oxygen and glucose throughout body Delivery of oxygen and glucose to mitochondria Creation of ATP Removal of metabolic waste after production

3. What the process needs Oxygen From breathing Glucose From eating *other energy sources are available, but not as efficient Example- lactose Body turns on lactose gene when glucose is not present

4. How you get what you need Breathing Diaphragm expands, taking oxygen into lungs Oxygen diffuses from lungs into blood stream Eating Food taken in, broken down in mouth, stomach Digested food passes into intestines Nutrients and water diffuse into blood stream Circulation Blood carries vital ingredients to cells capable of making ATP

5. The systems involved Respiratory Exchange of gases with environment Digestive Breakdown and absorption of nutrients and water Circulatory Movement of materials throughout the body

6. Respiratory System Organs/tissues include: Lungs Trachea Nose/mouth Diaphragm Heart? Main job- maintain proper level of carbon dioxide and oxygen concentration in the blood stream

7. Digestive System Organs/tissues involved: Mouth Esophagus Stomach Small/large intestine Main job- using enzymes and muscles, break food down into molecules small enough that they can diffuse back into blood stream Your body can’t do this all itself. What helps?

8. Circulatory System Organs/tissues include: Heart Arteries, veins, capillaries Main job- pick up materials needed by the body and deliver them to the proper location while also removing waste from the body

9. Question Based on its name, predict what bronchitis is and how it could impact the process of respiration as a whole.