Biosensors are biological receptors, Which use a sensing feedback mechanism using select biochemical pathways.

This pathways interact and activate certain other biochemical pathways which ultimately give us the desired biochemical changes. the agents for these pathways are called bioactivators.

These biosensors sense the micro nutrient deficiencies in the plant system and activate the bioactivators which transport the micro nutrients such as minerals, enzymes, amino acids, growth hormones etc. from the local environment into the plant system