The process that helps maintain turgor pressure in plant cells and is related to Fick's First Law is osmosis.
Osmosis is the movement of water across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. This process helps maintain the turgor pressure within plant cells, which is crucial for their structure and function. Fick's First Law relates to the diffusion of substances, but in the case of cells, osmosis specifically pertains to the movement of water.