Question

what are the steps involed to test that the photosynthesis has taken place or not . pls answear for std 7

Answer 1

To know that the photosynthesis process is taking place or not we can do the starch test.

Starch test:-

A chemical test for starch is to add iodine solution (yellow/brown) and look for a colour change. In the presence of starch, iodine turns a blue/black colour

Answer 2

Answer:

Chlorophyll is a green pigment found in the leaves and green stems of plants.green pigment trap light energy from the sun, which is then used to combine carbon dioxide and water into sugar in the Process of photosynthesis

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