AQA AS LEVEL BIOLOGY (7401/1 ) PAPER 1 QP MERGED WITH MARK SCHEME MAY 2024
AS
BIOLOGY
Paper 1
Monday 13 May 2024 Morning Time allowed: 1 hour 30 minutes
For Examiner’s Use
Question Mark
1
2
3
4
5
6
7
8
9
TOTAL
7401/1
AQA QP + MARK SCHEME
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 . 1 Figure 1 shows a diagram of the human gas exchange system.
Figure 1
Structure B is muscle. The volume of the thorax is increased when structure B
contracts.
Name the structures labelled A and B.
[2 marks]
A
B
IB/M/Jun24/7401/1
, 3
Do not write
outside the
0 1 . 2 Figure 2 is a diagram of an alveolus and a blood vessel associated with the alveolus. box
The direction of the movement of substances is shown by the arrows labelled C, D, E,
F and G.
Figure 2
Complete Table 1 by writing the correct letter, C, D, E, F or G, in the box next to each
statement. You may use each letter once, more than once or not at all.
[2 marks]
Table 1
Box Statement
represents the diffusion of oxygen
represents the transport of a gas mixture
represents blood moving at the highest pressure
Turn over ►
IB/M/Jun24/7401/1
, 4
Do not write
outside the
0 1 . 3 Describe and explain one adaptation of a single alveolus for gas exchange. box
[2 marks]
6
IB/M/Jun24/7401/1
AS
BIOLOGY
Paper 1
Monday 13 May 2024 Morning Time allowed: 1 hour 30 minutes
For Examiner’s Use
Question Mark
1
2
3
4
5
6
7
8
9
TOTAL
7401/1
AQA QP + MARK SCHEME
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 . 1 Figure 1 shows a diagram of the human gas exchange system.
Figure 1
Structure B is muscle. The volume of the thorax is increased when structure B
contracts.
Name the structures labelled A and B.
[2 marks]
A
B
IB/M/Jun24/7401/1
, 3
Do not write
outside the
0 1 . 2 Figure 2 is a diagram of an alveolus and a blood vessel associated with the alveolus. box
The direction of the movement of substances is shown by the arrows labelled C, D, E,
F and G.
Figure 2
Complete Table 1 by writing the correct letter, C, D, E, F or G, in the box next to each
statement. You may use each letter once, more than once or not at all.
[2 marks]
Table 1
Box Statement
represents the diffusion of oxygen
represents the transport of a gas mixture
represents blood moving at the highest pressure
Turn over ►
IB/M/Jun24/7401/1
, 4
Do not write
outside the
0 1 . 3 Describe and explain one adaptation of a single alveolus for gas exchange. box
[2 marks]
6
IB/M/Jun24/7401/1
