Cell biologists are scientists who study the structure, function, and behavior of cells, which are the basic building blocks of all living organisms. They investigate how cells interact with each other and their environment, as well as how they grow, divide, and respond to various stimuli. This research is crucial for understanding fundamental biological processes and diseases. These scientists often use advanced techniques and tools, such as microscopes and molecular biology methods, to observe and manipulate cells. Their work contributes to various fields, including medicine, genetics, and biotechnology, helping to develop new treatments and therapies for diseases like cancer and diabetes.