Question

Are there any exceptions in the Cell theory proposed by Schleiden, Schwann and Virchow? If yes, what are those?

Answer 1

Yes, there are exceptions to the cell theory.
They are,

• Cell theory does not explain the nature of a virus.
• It states that they become alive and multiply even though they are made up of non-living material.
• Cell theory does not throw light on how the first living cell originated or how life on earth began.
• The exceptions are mitochondria and chloroplasts. They have their own genetic material and can reproduce independently.