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The Fundamental Unit of Life — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
The control centre of cell is:
  • A
    Nucleus.
  • B
    Mitochondria.
  • C
    Nucleolus.
  • D
    Ribosome.
✓

Answer

  1. Nucleus.

Explanation:

The nucleus is an important cell organelle. It is the repository of genetic material. Inside nucleus, there is a synthesis of mRNA which is subsequently transported to the cytoplasm for protein synthesis. Thus, nucleus controls proteins synthesized in a cell and also is a repository of genetic material. Hence, the nucleus is controlling centre of the cell.

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