Olympiad Test: Components of Food - Class 6 MCQ

• Calcium is a vital mineral found in bones and teeth, providing strength and structure.
• It plays a crucial role in maintaining bone density and preventing fractures.
• Calcium is also important for muscle function, nerve signaling, and blood clotting.
• Sources include dairy products, leafy greens, and fortified foods.
• Ensuring adequate calcium intake is essential for overall skeletal health throughout life.

A balanced and nutritious diet is essential for maintaining good health. Here’s why each of the statements is correct:

1. Eat a diet rich in carbohydrates and proteins: Carbohydrates are the body's primary source of energy, while proteins are crucial for the growth, repair, and maintenance of body tissues. Including both in your diet ensures that your body has the necessary energy to function and the building blocks to maintain and repair itself.

2. Drink plenty of water: Water is vital for various bodily functions, including digestion, absorption of nutrients, regulation of body temperature, and removal of waste products. Staying hydrated helps keep these processes running smoothly.

3. Eat green vegetables every day: Green vegetables are packed with essential vitamins, minerals, and fiber. They are also low in calories and rich in antioxidants, which help protect the body from various diseases. Regular consumption of green vegetables supports overall health and well-being.

Conclusion: All three practices are important components of a healthy diet, which is why the correct answer is "All of these." Each plays a unique role in ensuring that your body gets the necessary nutrients, stays hydrated, and remains healthy.

4o

• (i) Amla — (c) Vitamin C (Amla is a rich source of Vitamin C)
• (ii) Carrot — (d) Vitamin A (Carrots are high in beta-carotene, which converts to Vitamin A)
• (iii) Milk — (a) Calcium (Milk is known for its high calcium content)
• (iv) Salt — (b) Iodine (Iodized salt is a common source of iodine)

Deficiency of vitamin C causes scurvy. Vitamin C is necessary for keeping gums and joints healthy and building resistance to infections.

Deficiency of vitamin B₁ causes Beri-Beri. Beriberi is a disease in which the body does not have enough thiamine.

Nutrients are the constituents of food that help in body functioning in one way or the other such as providing energy, repair cells, and growth. There are six major types of nutrients are carbohydrates, lipids, proteins, vitamins, minerals, and water.
Thus, option A is correct.

The correct option is C

• Fats and carbohydrates are major sources of energy.
• So, foods containing fats and carbohydrates are called 'energy giving foods’.
• Proteins are essential for the growth and repair of our body.
• So, foods containing proteins are often called ‘body-building foods’.

The given food items are rich in proteins.

When food turns to violet colour when treated with copper sulphate solution and caustic soda indicates the presence of proteins.

• Vitamin D is unique because our body can produce it when our skin is exposed to sunlight, specifically UVB rays.
• When sunlight hits the skin, it converts a cholesterol derivative into vitamin D3, which is then processed by the liver and kidneys into its active form.
• Morning sunlight is particularly effective for this process, making it essential for bone health, immune function, and overall well-being.

Bananas are a good source of several vitamins and minerals, especially potassium, vitamin B6, and vitamin C ( 1 ). Potassium. Bananas are a good source of potassium

Spinach - Iron, Milk - Calcium, Salt - Iodine, Whole grain - Roughage

Vitamin C is a water-soluble vitamin that helps in growth and development and is also called ascorbic acid. It is a temperature-sensitive vitamin that gets destroyed at elevated temperatures.

• Carrots are known for their high beta-carotene content, which the body converts into Vitamin A.
• Vitamin A is essential for maintaining healthy vision, skin, and immune function.
• Carrots are low in calories and contain no fat, making them an excellent choice for a healthy diet.
• In contrast, potatoes and honey provide minimal Vitamin A, while eggs contain fat and cholesterol.

If a person does not get enough proteins in his/her food, he/she is likely to have stunted growth and a swollen face.

Roughage is a broad term which categorises dietary fibres derived from plants. Fibres derived from plants are rich in cellulose, a sugar that is no digested by the human body due to the absence of the enzyme cellulase.

These fibres actively remove undigested food particles from the gastrointestinal tract. Thus, preventing constipation and keeping the GI tract clean.

Vitamin D helps our body to use calcium for bones and teeth, it is found in sunlight, eggs, butter and milk.

The major nutrients in our food are named carbohydrates, proteins, fats, vitamins and minerals. . In addition, food contains dietary fibres and water which are also needed by our body.

Explanation for the correct option:

1. Pulses are known to be an excellent source of protein nutrients.
2. Along with Proteins, they also contain minerals and vitamins. It is also a very cheap source of protein.
3. Storage proteins like albumin and globulin make up the majority of the proteins found in pulses.
4. The primary storage proteins in pulse seeds are globulins, which account for 35-72% of the total protein in the seeds. Albumins make up the majority of the remaining protein component.