Lilac colour.
Yes, protein is countable. It can be measured in grams or other units to determine the amount of protein present in a food or drink.
Yes, feces can contain small amounts of protein from undigested food and cells shed from the intestines.
Scales measure protein content in food products by weighing the sample before and after burning it to determine the amount of nitrogen present, which is used to calculate the protein content.
Iodine can be used to detect the presence of unsaturation in fats. When added to a sample of saturated fat, there will be no change in color as iodine does not react with the double bonds present in unsaturated fats.
because it helps to recognize any protein present within food
There is a special kind of test that can be used to identify whether proteins are present in any food or not. The presence of proteins in a food can be tested using Biuret solution, which is a mixture of sodium hydroxide solution and small amount of copper sulphate solution. A change to violet color will be observed if proteins are present in that food.
Proteins are present when biuret reagent turns purple. Biuret reagent reacts with peptide bonds in proteins, causing the color change.
To test starch: To test starch you take the food sample, and add iodine solution if the colour turns black this means starch is present. To test for protein: To test for protein, you take the food sample and add Biuret A and Biuret B and shake, if the colour turns lilac this means that protein is present.
To test for protein in food, you can use the Biuret test. Mix a small amount of food sample with Biuret reagent and observe for a color change - purple indicates the presence of protein. You can also use a protein detection kit or send the sample to a lab for detailed analysis.
This website http://lowcarbdiets.about.com/od/whattoeat/a/highproteinfood.htm gives you a list of foods high in protein. It also shows portion and the amount of grams of protein each food has.
there will not be enough amount of amino acids present in the protein deficient food, hence there will not be enough protein synthesis.
Hmm that's a tricky one ,but i think it's protein :)