PIMSO 2025 - Science - Secondary 1 - National Round Question 2

Question 2

What is the role of alveoli in the transport of gases in the body?

1. They serve as the linkage from the respiratory system and the circulatory system.
2. They serve as the carrier of the deoxygenated blood.
3. They serve as the carrier of the oxygenated blood.
4. They serve as the linkage from the respiratory system and the digestive system.