alleryStart learning →The third postulate of cell theory, added by Virchow, states that
AAll animal cells are larger than plant cells
BAll cells have a well-defined nuclear membrane
CAll cells in one organism are identical in size
DAll cells arise only from pre-existing cells
Answer & Solution
Correct answer: D. All cells arise only from pre-existing cells
1. Schleiden and Schwann proposed the first two postulates of cell theory.
2. Virchow's 1858 addition was every cell from a cell.
3. This rules out spontaneous generation of new cells.
4. So option A is correct.
_Source: Selina Concise Biology Class 9, Ch 2 Cell, the Unit of Life (Mistral OCR'd PDF), section 2.3_
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