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Nutrients, Classification And Functions — Revision Notes

Telangana Open School (TOSS) · Class 12 · Community Science (Home Science)

Nutrients, Classification And Functions revision notes for Telangana Open School (TOSS) Class 12 Community Science: 3 topics in quick points.

44 questions30 flashcards2 formulas & key relations5 concepts

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Key Topics to Revise

1

Functions of Food

  • Food performs three main functions: physiological, psychological, and social.
  • Physiological functions include energy provision, body building, and protective & regulatory roles.
  • Energy-giving foods contain carbohydrates, fats, and proteins. 1g carbohydrate = 4 kcal, 1g protein = 4 kcal, 1g fat = 9 kcal.
2

Macronutrients and Micronutrients

  • Macronutrients are needed in large amounts: carbohydrates, proteins, fats, and water.
  • Carbohydrates are the primary energy source; found in cereals, fruits, sugars, and tubers.
  • Proteins are essential for tissue formation, repair, and enzyme/hormone production; sources include meat, eggs, pulses, and nuts.
3

Non-Nutritive Components and Anti-Nutritional Factors

  • Non-nutritive components have no energy value but play important roles in digestion and health.
  • Dietary fiber (roughage) is indigestible plant material that aids digestion and prevents constipation.
  • Fiber is of two types: soluble (lowers cholesterol and blood sugar) and insoluble (adds bulk to stool).

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Full Notes

Key Concepts

Food performs three main functionsNutrients required in large amountsVitamins and minerals needed in smallComponents like dietary fiber and phytochemicalsSubstances in food that interfere

Frequently Asked Questions

What are the important topics in Nutrients, Classification And Functions for Telangana Open School (TOSS) Class 12 Community Science (Home Science)?
Key topics in Nutrients, Classification And Functions include Functions of Food, Macronutrients and Micronutrients, Non-Nutritive Components and Anti-Nutritional Factors. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Nutrients, Classification And Functions for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Nutrients, Classification And Functions. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Telangana Open School (TOSS) Class 12 Community Science (Home Science) Revision Notes

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