Question 7
FA student measured their heart rate before, during and after exercise. The student exercised from 2 minutes to 6 minutes.
The Figure shows the heart rate of the student.
Figure
a.[1]
At rest, the student counted 35 pulse beats in 30 seconds.
Calculate the resting heart rate of the student in beats per minute.
b.[1]
Use the Figure to calculate the increase in heart rate between 2 minutes and 6 minutes.
c.[3]
At 6 minutes, the stroke volume of the student was 110 cm3.
cardiac output=stroke volume×heart rate \text{cardiac output} = \text{stroke volume} \times \text{heart rate} cardiac output=stroke volume×heart rateCalculate the cardiac output of the student at 6 minutes.
Give your answer in dm3\text{dm}^3dm3 per minute.
d.[2]
Describe how the heart rate of the student changed after the exercise stopped.
8.2 Blood and circulation Questions
42 exam-style questions on Edexcel GCSE Biology 8.2 Blood and circulation, covering 8.2.1 Structure and function of the blood, 8.2.2 Structure of blood vessels, 8.2.3 Structure of the heart and circulatory system, and 8.2.4 Cardiac output. Each one has a worked solution and a mark scheme showing where the marks go.