Make a list of food items taken during lunch. Write the components in each food item. What is the role of water present in our diet?
Answers
Answer:
Proteins
These are required by the muscles, blood, skin, hair, nails, etc. The proteins are obtained from the plant sources as well as animal sources. Lean meat, fish, eggs, cheese are the main source of animal proteins. The proteins present in the milk and eggs contain all the amino acids required by the body. These are a valuable source of energy for kids.
Carbohydrates
These provide energy to the body tissues. These are obtained mainly from plant sources such as wheat, rice, maize, potatoes, peas, beans, and fruits. Out of these, wheat, rice, and maize are the three main cereal crops rich in carbohydrates. They have a large quantity of starch.
Fats
The vitamins are absorbed, stored, and transported by the fats. They moisturize the skin and supply energy to different parts of the body. All the cooking oils, milk, eggs, supply fat to our body.
Also read: Nutrients in Human Beings
Vitamins
These are responsible for the growth and maintenance of our bodies. The essential vitamins include A, C, D, E, K, and B-complex. Vitamin D and K are made by our bodies. All the other vitamins are provided by the food we eat.
Minerals
The metals, non-metals, and their salts are mined from the soil. These are known as minerals. The most important minerals required by our body are-
Iron
Phosphorus
Iodine
Calcium
Nutrients Present in Different Food Items
Food Items Nutrients
Rice Carbohydrates
Pulses Proteins
Maize Proteins, Carbohydrates
Milk Proteins, Fats, Calcium
Wheat Proteins, Carbohydrates
Fruits Fibres, Vitamins, Carbohydrates
Salt Iodine
Eggs Proteins
Each nutrient has a specific function in our body. The deficiency of any nutrient in our body leads to certain diseases. Therefore, a balanced diet is important for healthy living.
Answer:
Water is a very good solvent – it has the ability to dissolve many substances.
The boiling point and freezing point of water make it easily available in all three states (solid, liquid, and gaseous).
The specific heat of water is quite high. This enables water to absorb and release heat slowly, thereby regulating the temperature of its environment.
Owing to its transparency, water can allow light to reach the life forms that are submerged in it. This is crucial for the survival of plant life in the oceans, lakes, and rivers.
Water is neither acidic nor basic in nature. It has a pH of 7, making it a neutral substance.
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