During which process in leaves is the water potential positive?

Choose the incorrect sentences:
$(1)$ The apoplastic movement of water occurs exclusively through the intercellular spaces and the walls of the cells.
$(2)$ The symplastic system is the system of interconnected protoplasts.
$(3)$ Casparian strips are present in the apoplast pathway.
$(4)$ Transport of water is slow in the symplast compared to the apoplast.

During the day, the turgidity of leaf cells decreases, but they regain it during the night. What is this process called?

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

Examples of bulk flow by a positive hydrostatic pressure gradient and a negative hydrostatic pressure gradient are

Choose true and false statements from the following:
$I.$ Mycorrhizal association between fungus and root of plant $(Pinus)$ is often obligate.
$II.$ $Pinus$ and orchid seeds can germinate and grow into plant in absence of mycorrhizal association.
$III.$ Absorption of water along with mineral solute by root hairs is purely a process of diffusion.
$IV.$ In apoplast pathway,movement of water takes place through cell wall and intercellular spaces.
$V.$ Fungal hyphae provide sugar and organic internal to root.
Choose the correct option.