Multiple choice

A unicellular organism like ameoba obtains its food through

  1. exosmosis

  2. diffusion

  3. exocytosis

  4. endocytosis

  5. endosmosis

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Endocytosis is an energy-using process by which cells absorb molecules (such as proteins) by engulfing them. It is used by all cells of the body because most substances important to them are large polar molecules that cannot pass through the hydrophobic plasma or cell membrane. Ameoba obtains its food through endocytosis.