Model Answers

Describe and explain the adaptation of human lungs in relation to Fick's Law
5 MARKS

Describe the pathway of oxygen from an alveolus to the blood
3 MARKS

Explain how ventilation maintains a concentration gradient 2 MARKS

Describe and explain the process of inspiration 5 MARKS

Describe and explain the process of expiration 5 MARKS

Explain how paralysis of the diaphragm leads to breathing difficulties 2 MARKS

Describe and explain the effects of pulmonary fibrosis 4 MARKS

Explain why during an asthma attack less oxygen diffuses into the blood 2 MARKS

Explanation of symptoms of asthma 4 MARKS

Explain the effects of allergies on asthma 5 MARKS

Explain the effect of emphysema
4 MARKS

Explain the symptoms of emphysema
3 MARKS

Describe the course of infection of TB 6 MARKS

Explain the symptoms of pulmonary fibrosis 4 MARKS

What is Fick's Law? 1 MARK

Calculate pulmonary ventilation
1 MARK

What is tidal volume ?
1 MARK

What is ventilation rate?
1 MARK

What are the risk factors of lung disease? 5 MARKS

Who may be more vulnerable to TB ? 5 MARKS