Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Biology OCR A
  5. Question bank

Transport in animals

EasyMediumHard
123456789101112131415161718192021222324252627282930313233
Question 13

The graph below shows pressure changes in the left side of a mammalian heart during a cardiac cycle.

Cardiac pressure graph

a.

Compare the changes in pressure in the left ventricle with the changes in pressure in the left atrium.

[3]
b.

Using the graph, calculate the heart rate of this individual in beats per minute (bpm). Give your answer to 2 significant figures.

[2]
c.

Calculate the percentage increase between the minimum and maximum pressure in the aorta. Give your answer to 2 significant figures.

[2]
d.

Name the valve which closes at point Y.

[1]

Transport in animals Questions

  1. A Level
  2. /Biology
  3. /Transport in animals