Biology, asked by pranjalsharma2179, 9 months ago

Write an experiment to show that chlorophyll is necessary for photosynthesis in your own world

Answers

Answered by Anonymous
1

Answer:

Explanation:

Aim of the experiment:-

To prove that chlorophyll pigment in green leaves is necessary for the plants to prepare their carbohydrate (starch) food.

Requirements for the experiment:-

A well watered variegated leaf plant, beaker, water, Bunsen burner, mentholated spirit or rectified spirit or ethanol, iodine solution, a white porcelain tile.

Procedure for the experiments:-

A variegated leaf plant is taken for this particular experiment to prove the necessity of chlorophyll for photosynthesis. A variegated leaf is a leaf in which different patches of colors are present in a Croton or Coleus or Geranium plant. The place where green patches are present in the leaf, chlorophyll pigment is present while at the other color patches present in the leaf contain other pigments but not chlorophyll. Before starting the experiment to prove chlorophyll is necessary for photosynthesis an important step has to be carried out is known as De-starching. De-starching is a step in which the starch present in the leaves of the plant will be removed by keeping the variegated leaves plant in a dark room or closed cup-board for about 48 hours. This step is done to ensure that previously synthesized starch in the leaves get consumed up because photosynthesis doesn't occur at that time as the plant is kept in dark place.

After De-starching step the variegated leaf plant is kept in bright sunlight for about 6 hours. After this one of the variegated leaf is plucked out from the experimental plant. Then Iodine test is conducted for this experimental leaf to find out whether the leaf prepared starch through photosynthesis or not.

Answered by sunam75
0

Explanation:

We know that that chlorophyll is a green pigment found in plant leaves. The role of chlorophyll in photosynthesis is vital. It is necessary in order to convert oxygen and glucose from carbon dioxide, water and using sunlight to the plant.

To prove that chlorophyll is necessary for photosynthesis we need to do an experiment.

Take two small plant. Both are planted in tubs. We need to marks the plants as 1st and 2nd. All leaves from 1st tree has cutted. And 2nd plant take normally. Both plant are kept in the direct sun light place. After some days we seen that 2nd tree is grew up and the 1st tree is about to death.

This is prove that chlorophyll is essential for photosynthesis.

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