CAIE A Level Biology 9700 · Transport in mammals
A patient's blood test results are shown in the table. One type of white blood cell has a count outside the normal range.
| White blood cell type | Patient count (cells per mm³) | Normal range (cells per mm³) |
|---|---|---|
| Neutrophils | 900 | 2000–7500 |
| Lymphocytes | 2500 | 1500–4000 |
| Monocytes | 500 | 200–800 |
Identify the cell type that is abnormal. Compare the structure and function of this cell type with those of lymphocytes.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.