AP Biology › Understanding Alveoli
The function of an alveolus is most evident in the basic anatomy of which type of alveolar cell?
Which best describes the structure of the alveoli?
What is cell type forms the lining of the alveoli?
The alveoli of the human lungs cluster together in alveolar sacs. These clusters are commonly said to resemble clusters of grapes, as the nearly spherical alveoli appear to bud away from "stems" (alveolar ducts). Which response best explains the alveoli's spherical shape?
Which of the following structures is found within the lungs and helps facilitate gas exchange?
What type of epithelial tissue surrounds the alveoli?
Which of these describes the gas exchange that occurs in the alveoli?