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2.2 Animal tissues, organs and organ systems

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Question 73

A medical engineer tests two replacement heart valves in a model circulation. The pump is run for 10 cycles with each valve.

ValveVolume moving forwards in 10 cycles in cm3Volume moving backwards in 10 cycles in cm3
P72080
Q68015
a.

Calculate the net volume of liquid moved forwards in 10 cycles for each valve.

Give your answers in cm3.

[2]
b.

Explain which valve would be better to use in a patient's heart.

Use your answers to part (a).

[2]
Markscheme

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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