Question

Cut surface of a brinjal turns brown. Name the change that take place here

Answer 1

Answer:

chemical change

Explanation:

it cannot change back back into the brinjal

Answer 2

When an apple is cut into pieces, the plant tissue is exposed to oxygen. This triggers an enzyme known as polyphenol oxidase (PPO) to wait for it oxidize polyphenols in the apple's flesh. This results in new chemicals (o-quinones), which then react with amino acids to produce brown-colored melanins.