Question

why is it called the structural and functional unit of life???

Answer 1

Cell is called as structural and functional unit of life.

Cell is the smallest part of body, due to aggregation of cells tissue is formed, and due to aggregation of tissue organ is formed and thus organ system is formed.

So we can see how a smallest part of body forms a huge living bodies like whale.

This is reason that why cell is called as structural unit of life.

Moving to next point, maximum chemical reactions occur in cell( some occur outside too).Cell contains about 5000 chemicals, which are necessary for us.Metabolism is maintained by cell because the bredkdown of glucose into carbon dioxide and water occur in cell.Moreover cell contains genetic material(DNA).Thus it functions as a site of genetic recombination and chemical reaction.

Thus we can see that how a cell is functional to us!.

Answer 2

here's your answer......
the cells are called the structural and functional unit of life. all living things are made up of cells, much as a wall is made up of bricks. hence, cells are the basic structural units of living organism.

I hope it will help you........