Q.4. Explain the test for presence of:
a. Starch
b. Fat
c. Protein

Dear student,
Carnivores are those animals which eat the only animal flesh or other animals.
For example:



Herbivores are those animals which eat only plants or plant parts.
For example:


Omnivores are those animals which eat both plant and animals.
For example:

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Protein - Biuret solution. Biuret solution is used to identify the presence of protein. Biuret reagent is a blue solution that, when it reacts with protein, will change color to pink-purple.
Fats - Shake or crush the food to make it dissolve. Filter or dilute the food and ethanol mix so that you get a clear liquid (a solution of fat in ethanol). Add this to a test tube of water. A white (milk-like) emulsion indicates the presence of fats or oils.
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Protein - Biuret solution. Biuret solution is used to identify the presence of protein. Biuret reagent is a blue solution that, when it reacts with protein, will change color to pink-purple.?
Fats - Shake or crush the food to make it dissolve. Filter or dilute the food and ethanol mix so that you get a clear liquid (a solution of fat in ethanol). Add this to a test tube of water. A white (milk-like) emulsion indicates the presence of fats or oils.?
Starch - Take a test tube. Cut a potato in a small piece and take copper sulphate and iodine solution and 5 drops of water. Then stir it and it will turn into purple or dark blue in colour. It indicates the presence of starch in foods.
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Carnivores- Are animals which feed on other animals. Eg- Lion, Wolf.
Herbivores- Are animals which eat plant and plant products. Eg- Cow, Sheep.
Omnivores- Are the animals who eat other animals also and plant and plant products. Eg- Humans, Vulture.
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There are seven major classes of nutrients: carbohydrates, fats, fiber, minerals, protein, vitamins, and water. Fats - one source of energy and important in relation to fat soluble vitamins. Roughage (Fiber) - the fibrous indigestible portion of our diet essential to health of the digestive system.
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Protein - Biuret solution. Biuret solution is used to identify the presence of protein. Biuret reagent is a blue solution that, when it reacts with protein, will change color to pink-purple.??
Fats - Shake or crush the food to make it dissolve. Filter or dilute the food and ethanol mix so that you get a clear liquid (a solution of fat in ethanol). Add this to a test tube of water. A white (milk-like) emulsion indicates the presence of fats or oils.??
Starch - Take a test tube. Cut a potato in a small piece and take copper sulphate and iodine solution and 5 drops of water. Then stir it and it will turn into purple or dark blue in colour. It indicates the presence of starch in foods.?
There are seven major classes of nutrients: carbohydrates, fats, dietary fiber, minerals, proteins, vitamins, and water.
Carnivores- Animals which eat other animals as food. Eg- Lion, Tiger.
Herbivores- Animals which eat plants and plant products as food. Eg- Cow, Sheep.
Omnivores- Animals which eat plant and plant products and other animals as food. Eg- Crow, Eagle.
Regards.
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Dear student,
The process of making a fabric is as follows-
1)Dyeing
2)Spinning
3)Warping
4)Weaving
5)Fulling
6)Finishing.
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