The photograph below represents a leaf obtained from a certain plant.

Account for the observation made if the leaf was tested for starch.

Answer:

-The part of the leaf that lacks chlorophyll-iodine solution retains its yellow brown colour indicating absence of starch. Photosynthesis did not take place hence starch was not formed. Green parts of the leaf with chlorophyll-iodine solution changes colour to blue black indicating presence of starch. Photosynthesis took place and starch was formed

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The photograph below represents a leaf obtained from a certain plant. Account for the observation made if the leaf was tested for starch.

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Account for the observation made if the leaf was tested for starch.