Question

Conduct the activities to study the factor of (light,water)that essential for photosynthesis and write a report

Answer 1

dear ...
select a leaf from a plant which is exposed to sun light and cover some part of that leaf with a black slip/cover..
now leave it for a day.......
Next day remove blacke slip/cover and pluck the leaf and and few drops of
iodin on leaf ..the coverd part of leaf will become blue colour but the part of leaf exposed to sun light will be in green
colour indicating precence of starch formed due to photosithesis...so light is needed to foem starch(food of plant)

Nowww take 2 potted plants and supply water to one plant and avoid water for second plant
after few days leafs get dry .
which indicates need of water along with light..