BI-526
Diffusion
Biology · Secondary 3 · Medium · Diffusion
Oxygen in the air sacs of the lungs moves into the blood capillaries. Which statement best describes this movement?
- It moves by osmosis from blood to air sacs.
- It moves by osmosis from air sacs to blood.
- It moves by diffusion from air sacs to blood.
- It moves by diffusion from blood to air sacs.
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.