The Small Intestine And Alveoli

Question 1

What is the small intestines job?

Answer 1

To absorb most of the nutrients from what we eat and drink.

Question 2

What is a way that the small intestine is adapted?

Answer 2

It’s inside wall is thin which helps allow absorption happen quickly and efficiently.

Question 3

What is another way that the small intestine is adapted?

Answer 3

Another way it is adapted for its function is that it has villi which help speed up diffusion as they increase the surface area of the small intestine.

Question 4

What are the alveoli?

Answer 4

Alveoli are tiny sacs in our lungs that help/allow oxygen and carbon dioxide to move between the lungs and bloodstream.

Question 5

What is the alveoli’s structure specialised for?

Answer 5

Efficient gas exchange.

Question 6

What is a way that the alveoli is adapted?

Answer 6

The walls of the air sacs are very thin so that gases can diffuse through them very quickly.

Question 7

What is another way that the alveoli is adapted?

Answer 7

The air sacs(alveoli)have a large total surface area which makes the process of diffusion faster.