Science — AI-generated practice question

Amoeba is a unicellular organism that obtains food using temporary finger-like extensions called pseudopodia. These extensions surround the food particle and fuse over it, forming a food-vacuole.

Inside the food-vacuole, complex substances are broken down into simpler ones by enzymes. The digested substances then diffuse into the cytoplasm for use by the cell.

The remaining undigested material is moved to the surface of the cell and thrown out.

Source: Chapter 5, Section 5.2.3

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• The answer must mention three stages: ingestion (pseudopodia + food-vacuole), digestion (breakdown inside vacuole + diffusion), and egestion (throwing out undigested material). Each stage is worth ~1 mark.
• The term pseudopodia is good to include even though the passage calls them "temporary finger-like extensions" — both are acceptable.
• Don't confuse Amoeba with Paramoecium (which uses cilia at a fixed spot). Examiners watch for this mix-up.
• Keep the answer concise; three clear points are all that's needed for 3 marks.