Question

how can you test if a leaf has undergone photosynthesis

Answer 1

using iodine v can test whether the leaf had undergone photosynthesis or not

iodine shows the presence of starch

.if iodine is dropped on the leaf if it turns into blue black then it shows presence of starch it means it had undergone photosynthesis.

Answer 2

Answer:

we have to make a starch test. take a drop of iodine solution and drop it on the leaf if it turns in black-blue colour it has undergone the process of photosynthesis