The structural and functional unit of life is a cell.
They are the lowest levels of organizations found in any form of life.
Cells are composite and their constituents carry different life processes.
Cell structure:
A cell comprises several constituents, which perform unique activities that carry out different processes of life.
These constituents are cell wall, cytoplasm, cell membrane, cell organelles, and nucleus.
Functions:
A cell performs various activities, which are important for the development and growth of an organism. Some of the essential functions of a cell are as follows: