General Science

General Studies (CGL)

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When we cut an onion, the synthase enzyme converts the amino acid sulfoxides of the onion into which acid?

This questions was previously asked in

SSC CGL 3rd March 2020 Shift-2

Sulfenic acid

Citric acid

Nitric acid

Sulphuric acid

- When an onion is cut, it triggers the release of a natural enzyme called synthase.

- This enzyme converts the amino acid sulfoxides present in onion cells into sulfenic acid.

- Sulfenic acid is a volatile compound that further reacts to form the compounds causing the irritation and tears.

- Citric acid is commonly found in citrus fruits and is not related to onions.

- Nitric acid is a strong acid used in fertilizers and is unrelated to onion chemistry.

- Sulphuric acid is a strong acid used in industrial processes, not naturally occurring in onions.

Your answer is option:1- Sulfenic acid.