Science — AI-generated practice question

Nutrition in Amoeba:

Amoeba is a unicellular organism that follows holozoic nutrition. It captures food using pseudopodia — temporary finger-like extensions of the cell surface. These pseudopodia surround the food particle and fuse over it, forming a food-vacuole.

Inside the food-vacuole, complex substances are broken down into simpler ones, which then diffuse into the cytoplasm for use. The remaining undigested material is moved to the cell surface and thrown out.

Source: Chapter 5, Section 5.2.3

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• Examiners expect four key steps: pseudopodia formation → food-vacuole formation → digestion inside vacuole → egestion of undigested matter.
• Use correct terms: pseudopodia, food-vacuole, diffuse into cytoplasm — these are direct marks triggers.
• Do not confuse with Paramoecium (uses cilia + fixed spot); Amoeba uses pseudopodia over the whole surface.
• 3 marks = roughly one mark per step, so covering all four steps briefly is safer than elaborating on one.