The Fundamental unit of life | Class 9th Biology

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The smallest functional unit of life is cell, discovered by Robert Hooke in 1665. A cell can independently perform all necessary activities to sustain life. Hence cell is the basic unit of life. There are two types of cells → plant cell and animal cell.

A cell is the smallest and basic unit of life. A cell is not visible to the naked eye because of its minute size. A cell can have different shapes and sizes within the same organism. Every organism possesses different types of cells.

The smallest functional unit of life is cell, discovered by Robert Hooke in 1665. A cell can independently perform all necessary activities to sustain life. Hence cell is the basic unit of life. There are two types of cells → plant cell and animal cell.