Question : Which cell organelle has a central core of a crystalline material called a nucleoid composed of urate oxidase crystals?
Option 1: Glyoxysomes
Option 2: Sphaerosomes
Option 3: Peroxisomes
Option 4: Lysosomes
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Correct Answer: Peroxisomes
Solution : The correct option is Peroxisomes .
Small, single-membrane organelles with a centre dense in electrons are called peroxisomes. They have a wide range of enzymes that are engaged in several metabolic processes. The main function of peroxisomes is in oxidative processes. They contain enzymes that break down uric acid and hydrogen peroxide, respectively, such as urate oxidase (uricase) and catalase.
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