A closer look
Biology textbooks entirely lied to you about how organized your cells are. They aren't just neat little bags of rigid organelles. When the cell needs to get something done quickly, completely unstructured proteins magically clump together to form liquid droplets suspended in the cytoplasm, identical to oil separating from water. This liquid-liquid phase separation concentrates specific molecules to accelerate chemical reactions, creating a temporary membraneless organelle. Once the job is done, the droplet simply dissolves back into the cellular soup.
