Science, asked by prabhunath700218, 1 year ago

write an ACTIVITY WHICH SHOWS THAT STARCH IS FORMED DURING PHOTOSYNTHESIS. {best answer will be brainliest.}

Answers

Answered by sarikasingh16
29

During photosynthesis, a simple carbohydrate, glucose is produced which is converted into complex carbohydrate, starch. The presence of starch can be detected by adding a few drops of iodine solution which turns into blue-black colour in the presence of starch.


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Answered by superjunior
34

Annyeonghaseyo :)

Answer:

In the process of Photosynthesis, plants use light energy to make Glucose through CO2. This glucose is used to make cellulose from which cellulose fabric can be produced. The plant's structural component is produced in the form of starch in amyloplasts.

Explanation:

Activity to show this -

main materials need for the activity -

a water bath, any type of plant, alcohol, test tube, iodine solution.

Procedure -

step.1

Boil the water bath for few minutes and put a leaf of plant for about 30 seconds.

[ why we did this - by boiling the leaf it will become more soft and it will be killed, that's why ]

step.2

Now, bring out the leaf from boiling water and place it into the alcohol tube.

Make sure no Bunsen is lightning there.

Now again, put this tube back into the warm water.

step.3

About after 10 - 13 minutes you will notice that the leaf has changed it's colour into white, if it happened than remove it from the alcohol and again drop it into the water.

step.4

By using a petri dish Place the leaf on the spotting tile and cover it with the iodine [ leave it just for 2 minutes ]

step.5

By following these all steps the leaf will either change in black or blue colour.

that indicates that the leaf contains starch.


prabhunath700218: thanks a lot
prabhunath700218: it is very useful
superjunior: :)
prabhunath700218: done
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