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The Fundamental Unit of Life — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
Food is converted to energy in:
  • A
    Chloroplast
  • B
    Nucleus
  • C
    Mitochondria
  • D
    Vacuole
✓

Answer

  1. Mitochondria

Explanation:

Mitochondria are the sites of cellular respiration. They bring about the stepwise oxidation of food to release energy. The released energy is used for various energy-requiring activities inside the cell. Thus, they are also known as the powerhouses of a cell.

Chloroplasts are present in plant cells. The pigment chlorophyll present inside the chloroplast helps in the synthesis of food, by the process called photosynthesis.

The nucleus is the main control center of the cell, which regulates the activities of the cell. It contains genes which are the units of inheritance.

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