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dolphi86 [110]
3 years ago
7

The walls of the alveoli and capillaries are permeable. What does this mean?

Biology
1 answer:
ioda3 years ago
7 0

Options for the question have not been provided. They are as follows:

Substances can pass through them

They are made of muscle

They are located throughout the body

They are made of bone

Answer:

Substances can pass through them

Explanation:

  • When a wall or membrane is permeable, it means that substances can pass through it from one side to another.
  • Alveoli and capillary have permeable walls.
  • Alveoli are found in lungs. They need permeable walls for exchange of gases between the body and the environment.
  • Capillaries are a type of blood vessels. They need permeable walls for exchange of nutrients and waste material between the blood and the tissue.
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