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Amoeba sticks to substratum by means of

1. Rough surface
2. Plasmalemma
3. Protein
4. None of the above

Correct answer: Plasmalemma

Solution

An amoeba attaches to a substratum using its plasma membrane (plasmalemma), which is the cell’s outer living boundary. This membrane can form close contact with the surface and help the cell adhere and move.

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