Multiple choice

Fill in the blank in the following sentence.

The cells having high-energy requirements possess a large number of _______.

  1. Endoplasmic Reticulum

  2. Mitochondria

  3. Golgi Complex

  4. Lysosomes

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

Mitochondria are tiny structures that occur in varying shapes cylindrical, spherical, oval, rod shaped etc.. Each mitochondrion is bound by a double membrane. The outer membrane is smooth and straight, while the inner membrane is formed into numerous folds called cristae. The number of mitochondria in a cell varies considerably and depends on the nature of the cell. Cells with very high-energy requirements possess very large number of mitochondria. A human liver cell for example may have more than 1000 mitochondria. So also the flight muscle cells in insects. Mitochondria are absent in mature human RBC.

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