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