AQA
A-Level
BIOLOGY
3.1 | Biological Molecules
1.6 | ATP
Time allowed
55 minutes
QUESTION PAPER
Score Percentage
/46 %
4.1 | CELL BIOLOGY | QUESTION PAPER 1 1
, Page 1
(a) Name the substance that muscles use as their immediate energy source.
.....................................................................................................................
(1)
(b) Sports scientists investigated the change in energy sources used during exercise.
They measured the percentage of energy obtained from carbohydrate and the
percentage of energy obtained from fat in two groups of athletes.
• Group A exercised at different intensities for the same time.
• Group B exercised at the same intensity for different times.
They calculated the intensity of the exercise as a percentage of VO2 max.
VO2 max is the maximum volume of oxygen the athletes can take in per minute.
The results for Group A are shown in Figure 1 and the results for Group B are
shown in Figure 2.
Figure 1
Figure 2
A-Level
BIOLOGY
3.1 | Biological Molecules
1.6 | ATP
Time allowed
55 minutes
QUESTION PAPER
Score Percentage
/46 %
4.1 | CELL BIOLOGY | QUESTION PAPER 1 1
, Page 1
(a) Name the substance that muscles use as their immediate energy source.
.....................................................................................................................
(1)
(b) Sports scientists investigated the change in energy sources used during exercise.
They measured the percentage of energy obtained from carbohydrate and the
percentage of energy obtained from fat in two groups of athletes.
• Group A exercised at different intensities for the same time.
• Group B exercised at the same intensity for different times.
They calculated the intensity of the exercise as a percentage of VO2 max.
VO2 max is the maximum volume of oxygen the athletes can take in per minute.
The results for Group A are shown in Figure 1 and the results for Group B are
shown in Figure 2.
Figure 1
Figure 2
