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

Passage

A balanced diet contains seven different groups of substances.

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

Question 355 (2 of 2 Based on Passage)

Edit

Write in Short

Short Answer▾

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

Explanation

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.