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Cell is the basic structural units of living organisms.Explain
The cells of any organism  demonstrate all the characteristics of life: a life span that includes a living beginning, growth, development, reproduction, and death; the constant use of matter and energy; response to changing internal and external conditions; and the presence of DNA.
Although multicellular organisms can have diverse cell types, all cells have certain parts in common.  All cells are bound by a cell membrane and contain cytoplasm, which is where the cell parts lie. The nucleus of this cell contains the hereditary molecule DNA, which is also found in all cells. And, all cells contain ribosomes. Ribosomes are structures that are responsible for constructing proteins — the molecules that carry out the instructions contained in DNA. Hence, cell is the  structural unit of life.


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