[Review of Pathogens and Disease]

3. Which is the correct sequence of events during the phagocytosis of a bacterium by a leucocyte?

I. Pseudopods extend.

II. Food vacuole forms.

III. Plasma membrane receptors detect antigens on the surface of the bacterium.

IV. Lysosomes fuse with the food vacuole.

V. Leucocyte engulfs bacterium.

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