Final answer:
Plasmolysis is the process observed when the plant cell's cytoplasm shrinks away from the cell wall due to a hypertonic solution leading to water leaving the cell.
Step-by-step explanation:
The process occurring in the plant cell when it is placed in a salt water solution, causing the cytoplasm and cellular contents to shrink inward away from the cell wall, is known as plasmolysis. This happens in a hypertonic solution when water moves out of the cell, resulting in the cell membrane detaching and constricting the cytoplasm. The effects of osmotic pressure in hypertonic conditions lead to plasmolyzed cells, which is the opposite of turgid cells that occur in hypotonic solutions with excessive water intake.