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MCQ practice · SSC Biology Board questions · Chapter 2: Cells and Tissues of Organisms

Rajshahi Board 2021 Sylhet Board 2021

Which one controls all the activities of the cell?

Think it through first, then pick an option.

  1. a Nucleus
  2. b Mitochondrion
  3. c Plastid
  4. d Ribosome
Answer and explanation

Correct answer: a Nucleus

The nucleus controls all the reactions and activities of the cell.

Why the other options are wrong

  • b Mitochondrion: The mitochondrion produces energy and does not control the cell.
  • c Plastid: The plastid makes and stores food and gives colour; it does not control the cell.
  • d Ribosome: The ribosome helps in protein synthesis and does not control the cell.