Suggest why foil is only put around part of a leaf in experiment to show that light is needed for photosynthesis
Answers
Answer:
The areas that were exposed to the light stain blue-black.
The areas that were covered by the silver foil remain pale.
It's cause due to starch is produced from glucose made during photosynthesis. Areas of the leaf exposed to the light should turn blue–black when iodine is added proving starch is present. This in turn, proves that photosynthesis occurred. The areas of the leaf that were covered by the silver foil could not photosynthesise. This means they could not produce glucose and turn this to starch. So, when tested with iodine, these areas should remain pale.
Answer:A piece of foil wrapped around part of. A leaf will deprive it of light after a day the starch test will show that no starch is present in the parts of the leaf covered with alumnium foil
Explanation:
There is none