Question

NCERT CLASS IX - Science Textbook
Chapter 15 - Improvement in Food Resources

What are macro-nutrients and why are they called macro-nutrients?

Answer 1

They are the larger food molecules like carbohydrates .. Fats and fingers. They are called macro because macro means the opposite of micro.. Big

Answer 2

Answer:

Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes.

There are six major nutrients:

1) Carbohydrates (CHO)

2) Lipids (fats)

3) Proteins

4) Vitamins

5) Minerals

6) Water

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• Macro-nutrients are those nutrients which are required in large quantities for growth and development of plants.
• Since they are required in large quantities, they are known as macro-nutrient.
• The six macro-nutrients required by plants are: nitrogen, phosphorus, potassium, calcium, magnesium, sulphur

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