May/June 2026 Paper 12

2026 · 40 questions · 40 parts · 40 marks

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3Cell Structure OrganellesEasy1 mark
The transmission electron micrograph shows a macrophage.
Figure 3, a transmission electron micrograph of a macrophage: a large, pale, granular circular nucleus fills the centre, surrounded by cytoplasm containing many dark-stained rounded granules of varying size, clustered mostly around the upper and left rim of the cell; a leader line labelled Q points to one of these dark granules near the top right.
The dark stained material in the structure labelled Q is solid material from pathogens. What is the name of organelle Q?