Question

Which of the following is not a stem modification?

(a) Tendrils of cucumber

(b) Flattened structures of Opuntia

(c) Pitcher of Nepenthes

(d) Thorns of citrus

Answer 1

Ans: (c) Pitcher of Nepenthes

Sol: Pitcher of Nepenthes is a modification of leaf. In Nepenthes, the pitchers are meant for catching and digesting insects. The lamina is modified into pitcher. The leaf apex gives rise to a coloured lid for attracting the insects.