‘रचना-प्रयोग’ का मुख्य उद्देश्य क्या है?

व्याकरण का व्यावहारिक प्रयोग सिखाना

‘द्वितीयः’ किस प्रकार की संख्या है?

क्रमवाचक (दूसरा)

What is a balanced diet?

A diet that contains all the nutrients — carbohydrates, proteins, fats, vitamins, minerals, water and roughage — in the right proportions to meet the body’s needs.

State the functions of proteins and carbohydrates.

Proteins build and repair body tissues, while carbohydrates are the body’s main and quickest source of energy.

Why do the dietary needs of a sportsperson differ from those of a sedentary person?

A sportsperson uses more energy and needs more carbohydrates and proteins for energy, growth and repair than a less active person.

What are the harmful effects of poor nutrition?

A lack of nutrients causes deficiency diseases, while overeating, especially junk food, leads to obesity and lifestyle diseases.

What is a balanced diet?

A diet that contains all the nutrients — carbohydrates, proteins, fats, vitamins, minerals, water and roughage — in the right proportions for the body’s needs.

State the functions of carbohydrates and proteins.

Carbohydrates are the body’s main and quickest source of energy, while proteins build and repair body tissues and aid growth.

What is the function of vitamins and minerals?

They protect the body and regulate its functions, helping prevent deficiency diseases, though they are needed only in small amounts.

Why does a sportsperson need a different diet from a sedentary person?

A sportsperson uses more energy and needs more carbohydrates and proteins for energy, growth and repair than a less active person.

What are deficiency diseases? Give an example.

Diseases caused by a lack of a particular nutrient, such as scurvy from a lack of vitamin C or anaemia from a lack of iron.

What are the harmful effects of poor nutrition?

A lack of nutrients causes deficiency diseases, while overeating, especially of junk food, leads to obesity and lifestyle diseases.

Food and Nutrition for Health

Class 10 Health and Physical Education · Chapter 4

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Summary

This chapter explains the role of food and nutrition in maintaining health and supporting physical activity. It describes the major nutrients — carbohydrates and fats for energy, proteins for growth and repair, vitamins and minerals for protection and regulation, and water and roughage for proper functioning — and their food sources and functions. A balanced diet is one that contains all nutrients in the right proportions to meet the body’s needs, which vary with age, sex, body size and the level of activity, so a sportsperson needs more energy and protein than a sedentary person. The chapter discusses the consequences of poor nutrition, including deficiency diseases from a lack of nutrients and obesity from overeating, and stresses healthy eating habits, hygiene and the dangers of junk food. It also notes special dietary needs before, during and after sports activity, underlining that good nutrition is essential for growth, fitness and high performance.

Nutrients and their functionsBalanced dietDiet according to age and activityDeficiency diseases and obesityNutrition for sports

Key terms

Nutrient

A component of food that nourishes the body, such as protein or vitamins.

Balanced diet

A diet with all nutrients in the right proportions for the body’s needs.

Carbohydrates

The body’s main and quickest source of energy.

Proteins

Body-building nutrients needed for growth and repair.

Roughage

Indigestible fibre that helps the movement of food in the gut.

Deficiency disease

A disease caused by the lack of a particular nutrient.

Extra questions & answers

Try one from this chapter

A balanced diet is one that:

Flashcards & interactive practice

Food and Nutrition for Health

CBSE Class 10 Board Examination community

Summary

Key terms

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Practice quiz · Food and Nutrition for Health

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