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2.2 Animal tissues, organs and organ systems

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Question 16

A laboratory has collected blood for preparing equal-sized samples. The information about the blood and the planned samples is shown in the table.

QuantityValue
Volume of collected blood2.4 dm³
Red blood cells in 1 mm³ of blood4.6 × 10⁶
Red blood cells required in each sample2.0 × 10¹¹

Only complete samples can be prepared.

Calculate the number of complete samples that can be prepared.

[3]
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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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