IGCSE Biology Paper-3: Specimen Questions with Answers 355 - 355 of 358

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A balanced diet contains seven different groups of substances.

Three of these groups of substances are fats, fiber (roughage) and vitamins.

Question 355 (1 of 2 Based on Passage)


Write in Short

Short Answer▾

State the names of four other groups of substances in a balanced diet.


There are seven essential factors for a balanced diet: carbs, protein, fat, fiber, vitamins, minerals, and water.

There Are Seven Essential Factors for a Balanced Diet: Carbs, Protein, Fat, Fiber, Vitamins, Minerals, and Water
S. No.Nutrient% of daily caloriesFunctionSource
1Carbs45 – 55 %EnergyGrains (refined & unrefined) : wheat, maize, corn, millet, oats, rice, flour, pasta, noodles; potatoes; sweet potatoes, yam. Fruit (sugar) .
2Protein10 – 35 %Tissue growth and maintenanceMeat, fish, nuts, eggs, soya, beans, and pulses.
3Fat20 – 35 % from fatEnergy, energy storage, hormone productionNuts, seeds, plant oils, dairy products (milk, cheese) .
4FiberIncluded in carbs.Regulates blood sugar levels, bowel function and bowel health.Peas, beans, vegetables, fruit, oats, whole grains, brown rice, nuts, seeds.
5Vitamins & mineralstraceMetabolism regulation, aiding cell growth, other biochemical functionsSpecific to each vitamin/mineral. A range of vegetables, lean meat, nuts and seeds will cover most people՚s needs.
6Water0Maintaining hydrationDrinking water, other beverages. About 20 % of water intake comes from food.

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