Question

Table 1.1: Macro-nutrients and micro-nutrients for the plants
Role in the Plant
Major Deficiency Symptoms
Nutrients
Macro-nutrients
1. Nitrogen (N)
Major constituent of all proteins.
Yellowing of leaves, wrinkling
of cereal grains.
Purple and red spots on leaves,
delay in seed germination.
Poor growth with reduced rate
of transpiration.
Constituent of cell membrane and
certain proteins.
More abundant in growing tissues,
involved in the opening and closing
of stomata.
2. Phosphorus (P)
3. Potassium (K)
Micro-nutrients
1. Iron (Fe)
2. Manganese (Mn)
Constituent of some proteins.
Constituent of some enzymes.
Yellowing of leaves,
Yellowing of leaves, with grey
spots.
Deshaped leaves, yellowing
of leaves, stunted plant growth.
3. Zinc (Zn)
Constituent of plant hormones,
activates enzymes.
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Answer 1

Macronutrients include carbon, hydrogen, nitrogen, oxygen, phosphorous, potassium, calcium, sulfur, and magnesium. Micronutrients are boron, chlorine, manganese, iron, zinc, copper, and molybdenum. A plant uses these nutrients to support its growth, life cycle, and biological function