According to Munch theory,the cause of flow of soluble substances is

Root cap has no role in water absorption because

Which of the following statement is not correct ?

Water potential is equal to

Which of the following is the most acceptable theory for movement of water through plants?

Water in plants is transported by ascent of sap takes place through :

The metal ion involved in the stomatal regulation is:

Process occurs in leaves, which may lower their temperature is :

The cause of opening or closing of the stomata mainly depends upon change in the turgidity of

The speed of water absorption will be greater if