The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?

Assessment: WAEC SSCE - Biology - 2022 (Objective) Subject: Biology

Question 1 Report

The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is ?
Answer Details
The process that brings about the shrinking of a spirogyra cell when placed in a strong solution is plasmolysis. Plasmolysis is a phenomenon that occurs when a plant cell is placed in a hypertonic solution (a solution with a higher concentration of solutes than the cell). Water moves out of the cell through osmosis, causing the cell membrane to shrink away from the cell wall. In the case of spirogyra, a freshwater green algae, when it is placed in a strong salt solution, water moves out of the cell through osmosis, causing the cell membrane to shrink away from the cell wall, and the cell becomes flaccid. This process is called plasmolysis. Therefore, the process that brings about the shrinking of a spirogyra cell when placed in a strong solution is plasmolysis.

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