Biology, asked by navneet4633, 11 months ago

explain class x activity 6.1 life process with procedure,process and conclusion ​

Answers

Answered by Lokesh05
368

Answer:

Dear Student,

I had solved your query...

Procedure:

Activity asks us to put a variegated leaf plant in the dark for three days, and in sunlight for a few hours. Then It asks to treat it with boiling alcohol and iodine solution.

Observation/Process:

Only the green coloured part of the leaf got the blue colour while white colour part of the money plant leaf did not get the blue colour.

Inference:

Chlorophyll containing part of the leaf photosynthesise and make starch.The green part of the leaves photosynthesize and produces starch. We test the produced starch by Iodine. This whole experiment demonstrates that only the green part of the leave prepares starch.

Leaf in the dark consumes all its stored starch which was prepared before the experiment. Now the leaf is put into the sun. Here chlorophyll inside the chloroplast makes new starch. A broken leaf can not transport starch to different parts of the body. So this starch now remains localised to the green area only.

Now leaf is put into boiling alcohol. A boiling solution of alcohol breaks the chloroplast, and chlorophyll comes out into the solution. As a result, leaf loses its green colour and become colourless; while the colourless alcohol solution turns green. The colourless leaf is easy to stain with iodine.

When we put the leaf into iodine solution starch inside the green part turns blue.

Conclusion:

Here only the green part of the leaf turned blue. Thus, the test shows that only the green part of the leaf form starch.

Since, the green colour of the leaf is because of the presence of chlorophyll, from this experiment we can also infer that chlorophyll is necessary for the formation of starch.

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Answered by manishvgoelp9adru
40

Answer:

See below

Explanation:

Procedure:

Activity asks us to put a variegated leaf plant in the dark for three days, and in sunlight for a few hours. Then It asks to treat it with boiling alcohol and iodine solution.

Observation/Process:

Only the green coloured part of the leaf got the blue colour while white colour part of the money plant leaf did not get the blue colour.

Inference:

Chlorophyll containing part of the leaf photosynthesise and make starch.The green part of the leaves photosynthesize and produces starch. We test the produced starch by Iodine. This whole experiment demonstrates that only the green part of the leave prepares starch.

Leaf in the dark consumes all its stored starch which was prepared before the experiment. Now the leaf is put into the sun. Here chlorophyll inside the chloroplast makes new starch. A broken leaf can not transport starch to different parts of the body. So this starch now remains localised to the green area only.

Now leaf is put into boiling alcohol. A boiling solution of alcohol breaks the chloroplast, and chlorophyll comes out into the solution. As a result, leaf loses its green colour and become colourless; while the colourless alcohol solution turns green. The colourless leaf is easy to stain with iodine.

When we put the leaf into iodine solution starch inside the green part turns blue.

Conclusion:

Here only the green part of the leaf turned blue. Thus, the test shows that only the green part of the leaf form starch.

Since, the green colour of the leaf is because of the presence of chlorophyll, from this experiment we can also infer that chlorophyll is necessary for the formation of starch.

HOPE IT MAY HELPS YOU...

PLEASE MARK IT AS BRAINLIEST...

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