Across
- 2. in humans air is taken into the body through the
- 4. where does the breakdown of pyruvate using oxygen takes place
- 7. region of respiratory system that contains the vocal cords
- 8. a six carbon molecule broken down into pyruvate during respiration
- 9. the trachea branches off into two
Down
- 1. mechanism by which gases move between blood and air
- 3. what is the respiratory pigment
- 5. muscle below lungs that contracts during inhalation
- 6. balloon like structure which provides surface for exchange of gases
- 10. what does aerobic respiration pathway depends on