Question

Why cells are known as structural and functional unit of a body

Answer 1

Structural unit: A living organism is made up of one or more cell . Therefore,cell is structural unit of life.

Functional unit:All life functions of an organisms reside in its cell.Cell may also become specialised to perform specific function like contraction in muscle cell or impulse transmission in nerve cell.Therefore cells are functional unit of life.




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Answer 2

lets take an example ..like :
A brick is needed to make a building so we can say that its the main thing needed ......similarly cell has the same function ...cell is known as the structural and functional unit of the body bcuz all the major activities take place in cells cells form tissue tissue form organ .organ form organ system and organ system form an entire organism ....so now we can say that cell is a basic structural and functional unit of a body
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