Biology practise paperWatch
The volume of blood pumped out by Jack’s heart in one beat is 40cm3.
Jack’s resting pulse rate is 80beats per minute.
When Jack is exercising, his pulse rate increases by 90%.
Calculate the volume of blood, in litres, pumped out by Jack’s heart in one minute when he is exercising. (4marks)
A paper in a scientific journal includes some detailed models of anaerobic and aerobic respiration in yeast. (I) the students have confidence in the information in the paper.
Explain why. (2marks)