How do cells maintain homeostasis?

Cells maintain homeostasis, a stable internal environment, through various regulatory mechanisms. This involves controlling the movement of substances across the cell membrane (e.g., active transport, osmosis), regulating metabolic pathways (e.g., enzyme activity, feedback inhibition), and responding to external stimuli. For example, cells regulate pH, temperature, and solute concentrations to ensure optimal conditions for enzymatic reactions and overall cellular function.