Bananas turn brown in colour because:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. the air reacts with the enzymes in the banana.
- Bananas, when left outside, turns brown in colour within a few days. This takes place because bananas contain an enzyme called polyphenol oxidase that reacts with oxygen and coats the banana with a type of rust that accounts for the dark brown colour.
- This enzyme is also found in apples, potatoes and pears.