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2.2 Animal tissues, organs and organ systems

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Question 38
F

A 10.0 cm3 sample of blood is spun in a centrifuge. The parts of the blood separate into three layers. The figure shows the sample after spinning.

Figure: A 10.0 cm3 blood sample in a tube after being spun in a centrifuge, showing three separated layers

image

a.

Name the part of the blood in layer X and the part of the blood in layer Z.

[2]
b.

Use the figure to calculate the percentage of this blood sample that is plasma.

[2]
c.

Layer Y makes up less than 1 % of the blood. Name the two parts of the blood found in layer Y and give the function of each.

[4]
Markscheme

2.2 Animal tissues, organs and organ systems Questions

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

179 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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