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The organelle that protects the cell from oxygen toxicity is:
Question

The organelle that protects the cell from oxygen toxicity is:

A.

Lysosome

B.

Peroxisome

C.

Quantasome

D.

Oxysome

Correct option is B


The correct answer is: (b) Peroxisome
Explanation: Peroxisomes are small membrane-bound organelles present in eukaryotic cells that contain oxidative enzymes such as catalase and oxidase. These enzymes help break down hydrogen peroxide (H₂O₂) — a toxic byproduct of metabolism — into water and oxygen, thus protecting the cell from oxygen toxicity.
Reaction:
mathematica
Copy code
2H₂O₂ → 2H₂O + O₂
Information Booster: • Peroxisomes are also involved in fatty acid β-oxidation and detoxification of alcohol in liver cells. • Defective peroxisomes can cause Zellweger syndrome, a lethal genetic disorder.

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