What are the basic needs for food, and what are some common food components and their functions?

Here are the answers to your science questions:

[A] Answer the following question:

• Q-1: Why do we need food? We need food for energy to perform daily activities, for growth, and to repair worn-out cells and tissues in our body.

• Q-2: What are vitamins and minerals? Vitamins and minerals are micronutrients that our body needs in small amounts to function properly, maintain health, and prevent diseases.

• Q-3: What are carbohydrates? Name some foods rich in carbohydrates? Carbohydrates are the body's main source of energy. Foods rich in carbohydrates include rice, wheat, potatoes, and bread.

• Q-4: What are temporary and permanent teeth? Temporary teeth (milk teeth) are the first set of teeth that children develop, which later fall out. Permanent teeth are the second, stronger set of teeth that replace the temporary teeth and are meant to last a lifetime.

• Q-5: What is the function of the tongue? The tongue helps us to taste food, chew and swallow food, and speak.

[B] Write 'T' for True and 'F' for False:

1. Premolars and molars are flat teeth. ( T )
2. Human beings have 4 sets of teeth. ( F )
3. Bread is made of wheat. ( T )
4. We need to eat lots of fat to stay healthy. ( F )
5. Food can be preserved by adding salt. ( T )

[C] Fill in the blanks:

1. We should always eat fresh and clean food.
2. Smaller pieces are easier to chew and digest.
3. Bones give proper shape to our face.
4. Enamel is the hardest substance in human body.