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Gaseous exchange takes place at...

Gaseous exchange takes place at ______

A

alveoli

B

bronchi

C

bronchioles

D

trachea

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding Gaseous Exchange**: Gaseous exchange refers to the process where oxygen is absorbed into the bloodstream and carbon dioxide is released from the bloodstream. This process is crucial for respiration in living organisms. 2. **Identifying the Options**: The question provides four options: - A) Alveoli - B) Bronchi - C) Bronchi (repeated) - D) Trachea 3. **Analyzing Each Option**: - **Alveoli**: These are tiny, balloon-like structures in the lungs where the exchange of gases occurs. They are surrounded by capillaries, which facilitate the transfer of oxygen and carbon dioxide between the lungs and blood. - **Bronchi**: These are the main passageways that lead from the trachea to the lungs. They do not directly participate in gas exchange. - **Trachea**: This is the windpipe that connects the throat to the bronchi. It serves as a passage for air but does not engage in gas exchange. 4. **Conclusion**: Since the alveoli are specifically designed for the exchange of gases, the correct answer to the question "Gaseous exchange takes place at ______" is **A) Alveoli**.
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