A patient undergoing a routine clinical assessment has their complete blood count (CBC) analyzed. The table below presents their blood test results alongside the standard healthy reference ranges:
| Blood Component | Patient's Result (per dm3\text{dm}^3dm3) | Normal Range (per dm3\text{dm}^3dm3) |
|---|---|---|
| Red Blood Cells | 4.8×10124.8 \times 10^{12}4.8×1012 | 4.2×10124.2 \times 10^{12}4.2×1012 to 5.9×10125.9 \times 10^{12}5.9×1012 |
| White Blood Cells | 7.2×1097.2 \times 10^97.2×109 | 4.5×1094.5 \times 10^94.5×109 to 11.0×10911.0 \times 10^911.0×109 |
| Platelets | 45×10945 \times 10^945×109 | 150×109150 \times 10^9150×109 to 450×109450 \times 10^9450×109 |
Name the liquid medium of the blood that transports these cellular components around the body.
Identify which blood component of this patient is outside the normal healthy reference range.
Suggest one clinical sign or symptom this patient is likely to experience, and explain this in terms of the biological function of the affected component.
Practise AQA GCSE Biology 2.2 Animal tissues, organs and organ systems with exam-style questions for Foundation and Higher tier. 70 questions 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, matched to the AQA GCSE Biology (8461) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.