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Question

Which of the following is/are not the points of the cell theory?


A

The cell is the smallest unit of structure of all living things.

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B

The cell is the unit of function of all living things.

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C

Cells do not arise from pre-existing cells.

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D

Some living organisms are not made up of cells

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Solution

The correct options are
C

Cells do not arise from pre-existing cells.


D

Some living organisms are not made up of cells


The cell theory was prepared methodically by the observations and inferences of two German scientists, Schleiden and Schwann. They concluded that all living organisms are made up of one or more cells. Rudolf Virchow, in 1855, explained that cells divide and give rise to new cells and gave the theory its final shape. Hence, the postulates of cell theory were laid as follows:

  • Cells arise from pre-existing cells.
  • The cell is the basic functional unit of life.
  • All living organisms are made up / constitute of one or more cells.

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