Nutrition
CBSE CLASS X BIOLOGY
Nutrition
One mark questions with answers
Q1. What is a nutrient?
Ans1. A nutrient is an organic or an inorganic substance essential for the survival of a living being.
Q2. Write down the components of food.
Ans2. The major components of food are carbohydrates, proteins, fats, minerals, vitamins, water and roughage.
Q3. A food-stuff gives a red precipitate with Benedict's solution. Name the nutrient constituent of food indicated by the test.
Ans3. Sugar.
Q4. A food-stuff shows a positive test with weak iodine solution. Name the nutrient content in the food-stuff.
Ans4. Starch.
Q5. Which sugar is obtained from sugar cane?
Ans5. Sucrose.
Q6. Which carbohydrate is present in maize?
Ans6. Starch.
Two mark questions with answers
Q1. Why is mother's milk best for the baby?
Ans1. Mother's milk is a balanced diet containing lactose (milk sugar), fats, proteins, vitamins (except vitamin C), mineral salts (except iron) and antibodies (disease-fighting proteins). It is also easily digested and does not leave any waste matter. All these qualities make the mother's milk best for the baby's future growth, development and mental growth.
Q2. What type of food should a pregnant woman be given?
Ans2. A pregnant woman should be given protein rich diet because she has to supply nutrition to the developing embryo in addition to her own requirements. Extra proteins are needed for tissue growth of the developing baby. A pregnant woman needs more carbohydrates and fats than usual to get extra energy to carry out all the building processes linked with the developing baby.
Q3. Why are infants exposed to sunshine?
Ans3. New born babies are exposed to sun-light because vitamin D can be synthesised by the action of sun light on a cholesterol derivative present in skin. Vitamin D is essential for normal growth and development of bones and teeth.
Q4. State the advantages and disadvantages of hydrogenation of oils.
Ans4. Advantages of hydrogenation of
Nutrition
One mark questions with answers
Q1. What is a nutrient?
Ans1. A nutrient is an organic or an inorganic substance essential for the survival of a living being.
Q2. Write down the components of food.
Ans2. The major components of food are carbohydrates, proteins, fats, minerals, vitamins, water and roughage.
Q3. A food-stuff gives a red precipitate with Benedict's solution. Name the nutrient constituent of food indicated by the test.
Ans3. Sugar.
Q4. A food-stuff shows a positive test with weak iodine solution. Name the nutrient content in the food-stuff.
Ans4. Starch.
Q5. Which sugar is obtained from sugar cane?
Ans5. Sucrose.
Q6. Which carbohydrate is present in maize?
Ans6. Starch.
Two mark questions with answers
Q1. Why is mother's milk best for the baby?
Ans1. Mother's milk is a balanced diet containing lactose (milk sugar), fats, proteins, vitamins (except vitamin C), mineral salts (except iron) and antibodies (disease-fighting proteins). It is also easily digested and does not leave any waste matter. All these qualities make the mother's milk best for the baby's future growth, development and mental growth.
Q2. What type of food should a pregnant woman be given?
Ans2. A pregnant woman should be given protein rich diet because she has to supply nutrition to the developing embryo in addition to her own requirements. Extra proteins are needed for tissue growth of the developing baby. A pregnant woman needs more carbohydrates and fats than usual to get extra energy to carry out all the building processes linked with the developing baby.
Q3. Why are infants exposed to sunshine?
Ans3. New born babies are exposed to sun-light because vitamin D can be synthesised by the action of sun light on a cholesterol derivative present in skin. Vitamin D is essential for normal growth and development of bones and teeth.
Q4. State the advantages and disadvantages of hydrogenation of oils.
Ans4. Advantages of hydrogenation of