Question

Name the features of alveoli that enable smooth exchange of gases the across membranes?

Answer 1

Answer:

Here are some features of the alveoli that allow this:

they give the lungs a really big surface area.

they have moist, thin walls (just one cell thick)

they have a lot of tiny blood vessels called capillaries.

Answer 2

ALVEOLI -

• The Respiratory unit facilitates gaseous exchange in the lungs.
• A Tiny sac-like structure is present at the branching end of the lungs.
• Made of a thin layer of parenchymal cells.
• Provide a large surface area for gaseous exchange.
• Consists of tiny blood vessels known as capillaries.
• The Oxygen that we breathe in reaches the lungs, passes through alveoli and blood vessels, and reaches tissues.