Amount of `CO_(2)` eliminated by lungs per minute in human

Options

A. 18 litres
B. 200 ml
C. `1.5` litres
D. 25-30 litres

Answer

To determine the amount of carbon dioxide (CO₂) eliminated by the lungs per minute in humans, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Gas Exchange**:
- The lungs are responsible for the exchange of gases, primarily oxygen (O₂) and carbon dioxide (CO₂). During respiration, oxygen is inhaled, and carbon dioxide is exhaled.

2. **Air Volume Inhaled**:
- On average, humans inhale approximately 5 to 8 liters of air per minute. This air contains oxygen, nitrogen, and a small amount of carbon dioxide.

3. **Oxygen Utilization**:
- The oxygen present in the inhaled air is absorbed by the alveoli in the lungs and then transported by the blood to various tissues in the body.

4. **CO₂ Production**:
- As cells utilize oxygen for metabolic processes, they produce carbon dioxide as a waste product. This CO₂ is then transported back to the lungs via the bloodstream.

5. **CO₂ Elimination**:
- The CO₂ that is transported back to the lungs is expelled during exhalation. The average amount of CO₂ eliminated by the lungs is approximately 200 milliliters per minute.

6. **Conclusion**:
- Therefore, the amount of CO₂ eliminated by the lungs per minute in humans is approximately **200 ml**.

### Final Answer:
The amount of CO₂ eliminated by the lungs per minute in humans is approximately **200 ml**.

---