The diagrams below show the process occurring in the human
Y-tube
B
2.
10
4)
69
1.1.1.Identify the parts numbered 4 and 5 respectively.
1.1.2. Which human structures are represented by parts 1 and 2?
1.1.3. Which apparatus (A or B) represent exhalation? Give reasons for
1.1.4. Give TWO reasons why the part numbered 4 is a poor representa
structure in the human body.
1.1.5 State with reasons what would happen to part numbered 3 if the pa
numbered 4 was punctured.
1.2. During the FIFA World Cup 2018 in Russia a player had 500 ml of his
removed, stored, and returned to his body a few days before he competed
second game. This practice, known as blood
doping, has been banned by
This practice increases the haemoglobin content
in the blood which combi
oxygen to be transported in the body.
​