What would happen to organelles if they were put in a hypotonic solution and a hypertonic solutions?
Hypotonic means there’s a low level of solute so the water potential is low, whilst hypertonic means there’s a high level of solute so the water potential is high. Just like the cell membrane and cytoplasm, most organelles have a membrane and fluid inside (membrane-bound organelles anyway, such as mitochondria, chloroplasts, nucleus, ER, golgi body…). If they were put in a hypertonic solution then the water would move by osmosis from the high water potential inside the organelle into the relatively low water potential of their surrounding and they’d shrivel up (crenate). If they were put in a hypotonic solution then the water woudl move by osmosis from the low water potential outside the organelle into the relatively high water potential inside the organelle, causing them to burst (lysis). Of course, there’s certain organelles that aren’t membrane bound (e.g. ribosomes) and these wouldn’t be affected (at least not directly, unless the mineral ions in the solution have some sort of af
