Science — CBSE Class 10 board question

Nutrition in Amoeba (Fig. 5.5):

```
Food particle
↓
Pseudopodia extend → surround food → Food-vacuole formed
↓
Digestion inside vacuole (complex → simple substances)
↓
Simple substances diffuse into cytoplasm
↓
Undigested material expelled out of cell
```

The temporary finger-like extensions (pseudopodia) engulf the food particle, forming a food-vacuole where digestion occurs.

Source: Chapter 5, Section 5.2.3

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• CBSE expects a labelled diagram (even a rough schematic) showing the steps: pseudopodia formation → food-vacuole → digestion → diffusion → egestion.
• Key terms to include: pseudopodia, food-vacuole, cytoplasm, diffusion.
• Since the actual textbook figure (Fig. 5.5) cannot be drawn in text, showing a sequential flow diagram with labels earns full marks.
• Do not confuse Amoeba's nutrition with Paramoecium (which uses cilia at a fixed spot).