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Question

Choose the correct answer from the alternatives given.

Which is not true about the cell theory?

It states that all cells come from pre-existing cells
It is accepted today by biologists as applying to virtually all forms of life
It states that bacteria and other small organisms can arise spontaneously
It states that all organisms are composed of cells

A

It states that all cells come from pre-existing cells

B

It states that bacteria and other small organisms can arise spontaneously

C

It is accepted today by biologists as applying to virtually all forms of life

D

It states that all organisms are composed of cells

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Solution

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The correct option is C It states that bacteria and other small organisms can arise spontaneously
According to the cell theory all organisms (unicellular or multicellular) are formed of cells. It also states that all cells arise from pre-existing cells by cell division and do not originate spontaneously. Bacteria and other organisms therefore cannot arise spontaneously. So, the correct answer is 'It states that bacteria and other small organisms can arise spontaneously'.

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Q1

The cell theory states that all living organisms are made up of cells.

Which of the following is a living organism not composed of cells?

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Q2

S: All organisms must have a common ancestor.
R: All cells arise from a pre-existing cell.

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Q3

Who stated first of all that new cells are formed from a division of pre-existing cells?

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Choose the correct option with respect to the given statements.
Statement 1: All cells arise from pre-existing cells.
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"Cells arise from pre-existing cells". This was stated by Robert Hooke.

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