Two healthy green plants were placed in the dark for
24 hours. They were then set-up as shown in the
figure and left for 4 hours. Then a leaf was taken from
each plant and the chlorophyll was removed from the leaves
(a) How is the chlorophyll removed ?
(b) What is the next and final step in this experiment?
(C) What would be the result of the final step?
(d) Why is it necessary to grease the glass sheet?
(e) What hypothesis is being tested in this experiment?
(o Which of the two plants would serve as the control?
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Explanation:
(a) the chlorophyll is removed by boiling the leaf in alcohol bath.
(b) the next and final step of this experiment would be the iodine test of the leaves.
(c) as a result, the leaf will not change colour which means that there is no starch in the leaf due to no photosynthesis.
(d) we need to grease the glass sheet in order to ensure the best results from the experiment.
(e) the experiment tests the fact that without chlorophyll photosynthesis is not possible.
the last subpart is optional and completely depends on ones personal point of view.
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