Download 1 - Goffs School

1.
(c)
D
(d)
D
(e)
C
(f)
A
[4]
2.
(b)
A
[1]
4.
B
[1]
5.
A
[1]
6.
D
[1]
7.
C
[1]
Crofton High School
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17.
(i)
Vary/increases /changes /equiv
1
(ii)
Amount of blood pumped out of the heart per min/SV×HR
1
(iii) Vary O2 delivery/CO2 removal/ so demand for oxygen is met/equiv
1
Do not allow (iii) delivery of blood
18.
(a)
Starts high; steep drop at first; levels out/slower rate of decline.
3
N.B. 3 marks available. 1 for each part of the statement.
19.
(a)
(i)
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Speed up.
1
2
(b)
Cardiovascular System
1
Increased capillarisation/increased ability to transport oxygen/lower
blood pressure
2
Increased SV/cardiac output / HR returns to normal quicker / cardiac
hypertrophy / reduction in chance of CHD
3
Increased HR range/drop in RHR
Any 3
20.
(d)
1.
2.
3.
diet/equivalent.
time for rest/recovery.
time for work/learning.
3
Notes
Any order, accept any other possible answer.
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(d)
1.
2.
3.
4.
Correct
clothing/equivalent.
Warm up.
Correct equipment/equivalent.
Correct
facilities/equivalent.
3
Notes Any order
Reject Reference to overtraining/lack of recovery.
(e)
For adaptations to take place.
To recover before the next exercise session.
2
Notes
Accept equivalent of the above, for a maximum of 2 marks.
22.
1
7
a) Transport oxygen equiv
b) Fights illness, a repair system equiv
c clots blood to form scabs
d carrys water and regulates body temp
8 (i,ii
capillary
Vein
1 cell thick link veins and arteries
wide central tube
(lumen)
Thin inner layer
Elastic fibres
Artery
Thick outer wall
Thick inner layer of muscle
Elastic fibres
Crofton High School
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15 Amount of blood pumped out in 1 contraction
16 The number of beats per minute
Cardiac output= stroke volume x heart rate
Diastolic
An explanation that makes reference to the following:
1. Immediate increase in blood pressure as a result of exercise (1)
2. due to increased blood flow/ increased heart rate/need for more blood to muscles
(1)
18 An explanation that makes reference to three of the following:
1. Resting heart rate is lower because this is the heart rate whilst the individual is
inactive (1)
2. At rest the body has its lowest demand on the circulatory system/lower demand for
oxygen/less blood flow/less CO2 (1)
3. therefore resting heart rate does not need to be high/heart doesn’t need to work as
hard (1)
4. recovery heart rate is higher as the body needs increased blood flow/ more oxygen to
recuperate after exercise/pay back oxygen debt (1)
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