Question

justify cell are basic unit of structure and function of living being

Answer 1

all vital procces are done in the cell like getting energy

Answer 2

CELL : THE FUNCTIONAL UNIT OF LIFE

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The cells are known as building blocks or basic structural unit of life. As the blocks can be joined in many ways to make the building of different shapes and sizes. In same way all living organisms are made differently of different shapes, sizes and by different number of cells.

The cells were discovered by ROBERT HOOKE , a English scientist with his home made crude microscope he examined a thin slice of Cork and observed that it had comb like structure. he called these thick walled room like structures CELLS .

DEFINITION :- A unit mass of protoplasm with different , shape , size surrounded by a plasma membrane.

Some living organisms are made up of single cell, called UNICELLULAR ORGANISMS.
e.g :- amoeba, paramoecium and bacteria.

Most of the organisms are made of many cells called MULTICELLULAR ORGANISMS.
e.g :- Man , cat, mushrooms etc.

There are millions of living organisms. They are of different shapes and sizes. Their organs also vary in shape, size,and number of cells.

cells → Tissues → Organs → Organ system → Organisms.

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#akashmandal.