CBSE BOARD XII, asked by asyedaamtul, 3 days ago

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Answered by SrishtiPrachi
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1) How will you determine whether the given food items contain protein or not?

Ans:- Following steps are used to test if a food item contains protein.

1) Take a small quantity of the food items to be tested.

2) Grind/mash the food item.

3) Put the food item into a test tube.

4) Add 10 drops of water and shake the test tube.

5) Add two drops of copper sulphate solution to the test tube, using a dropper.

6) Add 10 drops of caustic soda solution using a dropper and shake the test tube.

7) Let the test tube rest in a test tube stand for a few minutes.

8) Observe the colour of the mixture.

9) Violet colour indicates the presence of proteins in the tested food item.

2) How will you determine that a particular food material is which part of plant?

Ans:- 1) The rhizome of ginger is also known as root ginger and it is the edible part of the ginger plant. 2) Spinach is obtained from the leaf part of a plant. Spinach is a very healthy and leafy vegetable. Leafy vegetables are obtained from the leaf part of the plant.

Hope it helps you...

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