1. Will a leaf taken from a potted plant kept in a dark room for a few days turn blue black when tested for starch? Give reasons for your answer.

Question

1.	Will a leaf taken from a potted plant kept in a dark room for a few days turn blue black when tested for starch? Give reasons for your answer.

MyClass24 · Accepted Answer

No, it will not turn blue black because all the starch present in the leaf would have been used up by the plant. And due to the non-availability of sunlight no starch would be synthesized in the leaves.