Page 203 - SUBSEC October 2017_Neat
P. 203
- 14 -
Module 3
3. (a) (i) State the name of the major carbohydrate stored in muscle tissue to provide a ready
respiratory substrate.
...................................................................................................................................
[1 mark] DO NOT WRITE IN THIS AREA
(ii) Clarify the relationship between the presence of lactic acid in the muscle tissue
and the oxygen debt.
.................................................................................................................................
.................................................................................................................................
.................................................................................................................................
[1 mark]
(iii) Light exercise creates little demand on the rate of breathing and heart output but as
exertion and duration increase, both breathing movements and heart output intensify.
When the body is exercising at its maximum capacity, oxygen consumption is at
its highest. This state is called VO max. It is measured as the volume of oxygen
in cubic centimetres, used per kilogram of body mass per minute. DO NOT WRITE IN THIS AREA
VO max = O2 cm kg minute -1
-1
3
2
A sports laboratory is equipped with a stopwatch, a weighing scale, appropriate
tubing and a gas analyser to measure oxygen consumption.
Explain the procedures and the calculations used to calculate the VO max of an
2
athlete.
.................................................................................................................................
. ................................................................................................................................
.................................................................................................................................
.................................................................................................................................
.................................................................................................................................
................................................................................................................................. DO NOT WRITE IN THIS AREA
.................................................................................................................................
.................................................................................................................................
.................................................................................................................................
[5 marks]
GO ON TO THE NEXT PAGE
02207020/CAPE/SPEC 2017
‘‘*’’Barcode Area”*”
Sequential Bar Code
