Which one of the following statements about lysosomes is NOT correct ?

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Which one of the following statements about lysosomes is NOT correct ?

They are waste disposal system of the cell
They breakdown all inorganic materials
These are also referred to as "suicidal bags"
Lysosomes stop entry of foreign materials
This question was previously asked in
UPSC NDA-2 – 2024
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The statement “They breakdown all inorganic materials” is NOT correct about lysosomes.
Lysosomes contain hydrolytic enzymes (like proteases, lipases, carbohydrases, nucleases) that break down organic macromolecules (proteins, lipids, carbohydrates, nucleic acids), waste materials, and cellular debris. They are not equipped to break down inorganic substances.
Statement A is correct as they function in waste disposal. Statement C is correct as they are often called “suicidal bags” because their rupture can lead to the digestion of the cell itself. Statement D is also technically incorrect as lysosomes digest foreign material *after* it has entered the cell (e.g., through phagocytosis), rather than stopping its entry. However, option B is fundamentally wrong about the nature of the substances they break down.

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