Gas Exchange In Humans

Question 1

How are the alveoli adapted for gas exchange?

Answer 1

1. Huge number
2. Lined with fluid that allows gases to dissolve
3. Walls one cel, thick
4. Excellent blood supply
5. Capillary wall single cell thickness
6. Short diffusion distance

Question 2

Design an experiment to measure the effect of exercise on breathing rate

Answer 2

1. Measure rate
2. Do exercise
3. Measure rate every minute for 10 minutes

Question 3

What is bronchitis?

Answer 3

Cilia destroyed

Question 4

What is emphysema?

Answer 4

Alveoli walls break down, reducing surface area for diffusion