Question

2. Describe one test each for detecting the presence of the following (a) proteins (b) starch (c) fats​

Answer 1

Answer:

For starch is iodine solution , pour it on the food a blue black colour comes. For fats is ethanol or oil, pour it on food a white color appears or it becomes translucent. For protein is Biuret solution ,by pouring it on food it becomes pink-purple.

Answer 2

Answer:

(a) Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source.

(b)Starch is a soft, white, tasteless powder that is insoluble in cold water, alcohol, or other solvents

(c)fats nutrition, biology, and chemistry, fat usually means any ester of fatty acids, or a mixture of such compounds, most commonly those that occur in living beings or in food