Chapter-components of food

Chapter-components of food
Q1) what are nutrients?
Ans1-nutrients are the substances that an organism needs for growth, repair and maintenance of its body.
Q2) Name the various nutrients needed by human body.
Ans2-carbohydrates,fats, proteins, vitamins, and minerals.
Q3) Apart from these nutrients , what are the other components of food?
Ans3- roughage and water.
Q4) What are energy giving foods? give 2 examples.
Ans4-carbohydrates and fats on digestion releases energy. Example- sugarcane, potato ,
Rice, sweet potato, wheat, maize, banana, papaya etc.
Q5)Which chemical reagent will we use to test the following food items: bread, pea nuts, soyabean, paneer, banana,
boiled rice,pulse, potato.
1. Bread ,banana, boiled rice
,potato
Contain starch: Iodine solution is need
2. Soyabean, paneer Are rich in protein:can be tested using caustic soda and copper
sulphate.
3. Pea nuts Rich in fats: only a paper is needed
Q6)What are body building food? Give example.
Ans6-protein are body building food.These are necessary for the growth and repair of body that is why growing children,
pregnant women and people recovering from illness need more protein in their diet.