Question

how will you dertermine that the leaves other than green can make food by photo sytesis​

Answer 1

Answer:

only green plants can make food because brown plants does not contains starch in it so they cannot made food

Answer 2

Answer:

Performing iodine test will prove that leaves other than green in colour also have stored carbohydrates which in turn will prove that leaves other than green in colour also undergo photosynthesis because iodine in presence of starch turns into blue black colour.

But if the leaf does not turn blue black on addition of iodine then it proves that the leaf belongs to a plant that does not undergo photosynthesis.