WAEC Biology 2004 Question 6

Question 6

Cell and Its Environment

The process by which a drop of ink spreads uniformly in a beaker of water is called

  1. A.absorption
  2. B.osmosis
  3. C.plasmolysis
  4. D.diffusion
Show the answer and explanation

Answer: D (diffusion)

Explanation

Ink particles move from where they are concentrated to where they are fewer until evenly spread: this is diffusion. Osmosis is movement of water across a membrane.