Naturally occurring inorganic nutrients in the food and soil essential for the proper
functioning of the plant and animal body
More About Mineral Nutrient
Minerals are among the essential elements required by the body including carbohydrates,
proteins, fats, vitamins and water
Though required in minute quantities, minerals are essentially required by both
the plants and animals
Plants obtain them from the soil through roots. There are about 16 minerals nutrients.
These are required for a healthy plant growth. If they are not available in the
required concentrations in the soil, fertilisers are added to soil for enriching
the mineral supply
Minerals such as Sodium, Calcium, Magnesium, Phosphorous, Chlorine, Sulphur and
Potassium are required in abundance when compared to others and hence are termed
as major minerals
Minerals such as Iron, Zinc, Boron, Molybdenum, Nickel, Iodine, Manganese, Cobalt
and Copper are required in very minute quantities and hence are known as “trace
elements” or minor minerals
Each of the mineral has a specific function and play vital role in the metabolic
Zinc is essential for protein manufacturing and cell division
Iodine is essential for synthesis of the thyroid hormone called Thyroxin
Potassium functions as an electrolyte and helps in fluid balance
Minerals form about 4% of body weight in humans
The minerals are obtained by the food we eat and hence are known as dietary minerals
Deficiency or excess of the minerals in the diet causes diseased condition in plants
as well as animals
Mineral deficiency diseases such as
- Deficiency of Iron causes Anaemia
- Deficiency of Calcium and Phosphorous causes osteoporosis, osteomalacia
- Potassium deficiency causes hyperkalemia
- In addition , sterility, hypogonadism, dwarfism, goitre and dermatitis also occur
due to mineral deficiency in humans
Deficiency of minerals in plants results in chlorosis, necrosis, stunted growth,
Questions based on Mineral Nutrient:
1) Deficiency of which of the following mineral causes Anaemia?
Solution: (d) Iron deficiency causes Anaemia
2) Which of the following mineral helps in the protein manufacturing process?
Solution: (c) Zinc is essential for protein manufacturing and cell division.
3) Some minerals are also known as “trace elements”.
Solution: (a) Some mineral elements are required in minute quantities and hence
are also known as “trace elements”.