Chap 1 Respiration
Chap 1 Respiration
Chap 1 Respiration
CHAPTER 1: RESPIRATION
Figure 1
X : _______________________________________________________________
Y : _______________________________________________________________
Z : _______________________________________________________________
[3 marks]
____________________________________________________________________
[1 mark]
b) What happens to the volume of the thoracic cavity in Figure 2?
____________________________________________________________________
[1 mark]
c) What happens to the air pressure in the thoracic cavity in Figure 2?
____________________________________________________________________
[1 mark]
d) Complete the flow chart below to show the sequence of air flow starting from the nose and
ending in the alveolus.
[2 marks]
1001 QUESTIONS
1 a) X – trachea, 3
Y – bronchus,
Z – bronchiole
b) i) oxygen 1
ii) carbon dioxide 1
2 a) inhalation 1
b) volume of thoracic cavity increases 1
c) air pressure decreases 1
d) P: trachea 2
Q: bronchus