Guttation happens due to the development of

Which of the following helps in the ascent of sap?

Which of the following are objections to the root pressure theory of ascent of sap in plants?
$I$. It is not applicable to plants taller than $20 \ m$.
$II$. Ascent of sap occurs even in the absence of a root system.
$III$. Root pressure is almost zero in tall gymnosperms.
$IV$. Root pressure is the only mechanism explaining the ascent of sap.
$V$. Root pressure is not developed in actively transpiring plants.

What causes the development of root pressure?

The transport of water and salts takes place through

Conduction of inorganic materials in plants occurs mainly through which of the following? Or,minerals absorbed by roots move to the leaves through: