Question

paheli places a potted plant in a dark room after three days she takes out the plant and test the presence of starch we she get positive starch test given reason​

Answer 1

Answer:

When the leaf was kept in dark room it used all the starch that was reserved for various activities of the plant.Further, the leaves were not able to synthesize starch in absence of sunlight. So, the leaf will not turn blue back when tested for starch.