Answer:
When we breathe, we inhale oxygen and we exhale carbon dioxide.
Step-by-step explanation:
1. For the cellular respiration, the body cells are provided with oxygen during gas exchange in respiration.
2. Oxygen gas diffuses from alveoli to the capillaries in our lungs.
3. Carbon dioxide is always transported in plasma or bounded to the hemoglobin or in some form of bicarbonate.
4. Carbon dioxide gas diffuses from our body tissues to the blood.
5. In our lungs, carbon dioxide gas diffuses from capillaries in to alveoli. Carbon dioxide leaves the body when we exhale.
6. During cellular respiration, we give give out and removes carbon dioxide from our body which is a waste product.
7. When we inhale, both oxygen and carbon dioxide gases enters the alveoli,
8. All the oxygen present in blood is bounded by hemoglobin and it is carried to all the body tissues and body and diffuses from our blood to our body tissues.