Question

Why are carbon, oxygen, potassium and sulphur called macronutrients?

Answer 1

Answer:

hey thats the reason mate

Explanation:

These are present in plant tissues in large (macro) amounts (i.e. more than 10mmole/kg of dry matter). Macronutrients include carbon, hydrogen, nitrogen, oxygen, sulphur, phosphorus, calcium, potassium and magnesium. Carbon, hydrogen and oxygen are absorbed from CO2 and H2O while the others are absorbed from the soil.

Answer 2

Hey Dear,

● Answer -

Carbon, Oxygen, Potassium and Sulphur are required in large quantities by the plant for its general growth and development, hence they are called macronutrients.

◆ Macronutrients -

• Nutrients which are required in large amounts for plant growth & function are called macronutreints.
• e.g. oxygen, nitrogen, potassium, magnesium, carbon, calcium, hydrogen, sulphur, potassium, etc.

# Effect of macronutrients -

• Carbon & oxygen (in CO2) is raw material for photosynthesis.
• Nitrogen causes cell division & is important constituent of plant proteins.
• Potassium helps in opening/closing stomata & activation of enzymes.
• Calcium regulates metabolic activities & cell membrane functioning.

Thanks dear. Hope this helps you...