A tissue homogenizer is a commonly used sample processing device in biology education and laboratory research, used to prepare a uniform suspension or homogenate of biological tissue samples. It usually consists of a sealable container and a high-speed rotating blade, which breaks down tissue cells through physical shear force and releases the components inside the cells. In biology teaching, students can personally operate and learn how to prepare cell extracts, conduct experiments on the extraction and purification of biological molecules such as proteins and nucleic acids. By using a tissue homogenizer, students can understand the principles and methods of cell structure and cell fragmentation, and master the basic skills of biological sample processing.