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)

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 calories	Function	Source
1	Carbs	45 – 55 %	Energy	Grains (refined & unrefined) : wheat, maize, corn, millet, oats, rice, flour, pasta, noodles; potatoes; sweet potatoes, yam. Fruit (sugar) .
2	Protein	10 – 35 %	Tissue growth and maintenance	Meat, fish, nuts, eggs, soya, beans, and pulses.
3	Fat	20 – 35 % from fat	Energy, energy storage, hormone production	Nuts, seeds, plant oils, dairy products (milk, cheese) .
4	Fiber	Included in carbs.	Regulates blood sugar levels, bowel function and bowel health.	Peas, beans, vegetables, fruit, oats, whole grains, brown rice, nuts, seeds.
5	Vitamins & minerals	trace	Metabolism regulation, aiding cell growth, other biochemical functions	Specific to each vitamin/mineral. A range of vegetables, lean meat, nuts and seeds will cover most people՚s needs.
6	Water	0	Maintaining hydration	Drinking water, other beverages. About 20 % of water intake comes from food.