Question

25. 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?
(f) Which of the two plants would serve as the control?
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Answer 1

Answer:

a. boil the leaf in methylated spirit.

b.add iodine solution first then check for the presence of starch..

d.to prevent atmospheric moisture from entering.

c.the leaf having starch turns blue black because it has photosynthesised.(B).the leaf not having starch turns brown.(A)

e. Chlorophyll is necessary for photosynthesis

f.option Awithout Potassium Hydroxide Sol.(this is not sure)..

Answer 2

Answer:

this is anser oy your qwestion.

I hope it is help you.