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Chapter 5 The Fundamental Unit of Life

As the name of the chapter justify the cell is fundamental unit of life. As a house is made of thousand and million af brick similarly all organisms are made as these cell which perform all vital functions for our body. Together they form tissue then organ and organ system then a complete body cells have capability to divide and again form new cell to maintain continuity.

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Exercise 1

  • Q1

    Who discovered cells, and how?

    Ans:

    Robert Hooke found cells in 1665 while analyzing a flimsy cut of stopper through a self-planned magnifying lens. He saw that the plug looked like the design of a honeycomb consisting of numerous little compartments. These little boxes are called cells.


    Q2

    Why is the cell called the structural and functional unit of life?

    Ans:

    A cell is able to freely do all fundamental exercises of life. Thus, they are called fundamental or useful units of life.


Exercise 2

Exercise 3

Exercise 4

Exercise 5

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