Participation in Physical Activity and Sport
Question Paper & Mark Scheme (Merged) Friday 23 May 2025 [VERIFIED]
, 2
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outside the
Section A box
Applied anatomy and physiology
Answer all questions in this section.
Only one answer per question is allowed.
For each question completely fill in the circle alongside the appropriate answer.
CORRECT METHOD WRONG METHODS
If you want to change your answer you must cross out your original answer as shown.
If you wish to return to an answer previously crossed out, ring the answer you now wish to select
as shown.
0 1 Which one of the following is responsible for delaying the spread of the electrical
impulse in the cardiac conduction system?
[1 mark]
A Atrio-ventricular node
B Bundle of His
C Purkinje fibres
D Sino-atrial node
0 2 During aerobic exercise, arterio-venous oxygen difference (A-VO2 diff) will increase.
Which one of the following is a reason for this increase in A-VO2 diff?
[1 mark]
A Oxygen content of arterial blood will be lower than at rest.
B Oxygen content of venous blood will be higher than at rest.
C Oxygen content of venous blood will be lower than at rest.
IB/H/Jun25/7582/1
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0 3 Describe the mechanisms within the body that support venous box
return. [3 marks]
0 4 Passive stretching and isometric muscle contraction are stages in PNF
(Proprioceptive Neuromuscular Facilitation).
Each stage activates different proprioceptors.
0 4 . 1 For the passive stretching stage:
name the main proprioceptor
involved
explain the role of that proprioceptor. [2 marks]
0 4 . 2 For the isometric muscle contraction stage: explain the role of that
proprioceptor.
name the main proprioceptor involved
IB/H/Jun25/7582/1
, 4
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[2 marks]
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