Question

observe the colour change when vegetables cut into pieces by your mother and give some reason for the and write some more such type of changes takes place in our surrounding​

Answer 1

Answer:

Some vegetable become black and some will turn reddish brown

Answer 2

Vegetables and other fruits decolourise because of the oxidation by atmospheric oxygen.

Explanation:

• The vegetables and other plant products like fruits contain an enzyme named polyphenol oxidase.

• This enzyme is present as a defence mechanism in these plant parts.

• When the cut part of a fruit or vegetable comes in contact with the atmospheric oxygen, it starts oxidising any phenolic compounds that come in contact with oxygen.

• This gives a black to reddish colouration to the cut part.

• This prevents the fruit from further getting attacked.