surfactant

Question: 6 of 47

CORRECT

• Time Remaining: 08:12:55

Which of the following chemical compounds prevents the lungs from collapsing?

Mucus

Mucin is a type of mucus produced by lung cells that absorbs water.

Surfactant

MY ANSWER

Surfactants are lipopolysaccharides that have a hydrophobic and hydrophilic layer. They keep the lungs inflated.

Enzymes

Enzymes are a catalytic protein and do not prevent the lungs from collapsing.

Buffers

Buffers maintain acid-base balance and are not involved in lung function.