Which of the following structures is responsible for gas exchange in mammals?
Practice Questions
1 question
Q1
Which of the following structures is responsible for gas exchange in mammals?
Bronchi
Alveoli
Trachea
Lungs
Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be expelled.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following structures is responsible for gas exchange in mammals?
Solution: Alveoli are tiny air sacs in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be expelled.
Steps: 5
Step 1: Understand that mammals need to breathe in oxygen and breathe out carbon dioxide.
Step 2: Learn that the lungs are the organs where this breathing happens.
Step 3: Identify that within the lungs, there are tiny structures called alveoli.
Step 4: Know that alveoli are like small balloons that fill with air when we breathe in.
Step 5: Realize that gas exchange happens in the alveoli, where oxygen from the air enters the blood and carbon dioxide from the blood is released into the air.
