A plant has weak stem which can coil around an upright support . It is a

A weak stem which itself coils around the support is called

A sensitive thread-like structure which can coil around a support is

A sensitive thread-like structure which can coil around a support is

A sensitive thread-like structure which can coil around a support is

A sensitive thread-like structure which can coil around a support is

P and Q are two types of plants having weak stems which cannot stand upright on their own. The plants P and Q have organs R and S respectively which can grow towards and support which they happen to touch and wind around that support. It is observed that organ R originated from the leaves of the plant whereas organ S originates directly from the stem of the plant. (a) What is (i) R, and (ii) S? (b) What is the name of growth movement exhibited by the organs R and S? (c) Name the stimulus involved in this case. (d) State whether the behaviour of organs R and S is a tropic movement or a nastic movement. (e) Name one plant like P and another plant like Q.

The sensitive thread-like structures found in climbers which can coil around a support are

What do we call plants with weak stems that can't stand upright and spread on the ground?

A plant had leaves with long leaf apex, which was curling around a support.

[A]: In certain plants the stem that twins around the support is hard and woody, such plants are called psammophytes. [R]: The hygroscopic roots have a spongy tis- sue called exodermis