Question

Why is it necessary to destarch a plant before conducting?

Answer 1

When investigating whether a condition (or a factor) is necessary for photosynthesis is to occur we need to remove all traces of starch in leaves so that we can provide evidence that photosynthesis takes place during the experiment i.e. in the presence of this factor and not in its absence.

Answer 2

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When investigating whether a condition (or a factor) is necessary for photosynthesis is to occur we need to remove all traces of starch in leaves so that we can provide evidence that photosynthesis takes place during the experiment i.e. in the presence of this factor and not in its absence.