Why is water essential for plants?

In which form$(s)$ is water found in nature?

Which of the following is correct about symplast?

Select the correct statement$(s)$ regarding bulk flow.
$I-$ In tall plants,water,minerals,and food are moved by a bulk flow system.
$II-$ This type of movement is achieved through a pressure difference between two points.
$III-$ In bulk flow,substances,whether in solution or suspension,move at the same pace as in a flowing river.
$IV-$ This process is similar to diffusion.

The terms 'apoplast' and 'symplast' were first coined by . . . . . . .

What are the types and functions of aquaporins?