Why do some plants feed on insects? How does a pitcher plant catch insects?


Some plants feed on insects for their nitrogen requirements. These plants are called insectivorous plants. Pitcher plant is an example of this type of plant. The leaf of this plant gets modified to form a pitcher with a lid. When an insect enters, it cannot climb back out against the hairs and ultimately falls to the bottom of the leaf, and gets digested by the juices present there.