$A$: Endodermis onwards,the movement of water occurs through the living part of the cell. $R$: The inner boundary of the cortex possesses an impermeable band of lignified matrix.

In how many hours,a mustard plant absorbs water equal to its own weight?

Which of the following is the importance of water to plant life?

Define the following terms:
$(1)$ Ascent of sap
$(2)$ Phloem transport

Choose true and false statements from the following and select the correct option from the set $(A-D)$ given below:
$I.$ Diffusion is an important process of transport in plants since it is the only means for gaseous movement within the plant body.
$II.$ In active transport,pumps are proteins that use energy to carry substances across the cell membrane against the concentration gradient.
$III.$ In facilitated diffusion,special proteins help hydrophilic substances to be transported across the membrane.
$IV.$ In diffusion,molecules move against the concentration gradient in a random manner.
$V.$ Facilitated diffusion is faster than active transport.

The presence of dew on the surface of leaves is due to