What invention of the 17th century made it possible to open and describe the cell?

This invention was the microscope. The invention of the microscope made it possible to examine the smallest structure of various biological materials.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.