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Question 11

Which observations are within the scope of cell theory? Select all that apply.

  1. A mineral crystal growing in water
  2. A bacterium whose cell has no nucleusBonne réponse
  3. A protein molecule folding in solution
  4. A leaf cell whose DNA is enclosed in a nucleusBonne réponse

Explication

A bacterium without a nucleus and a leaf cell with a nucleus are both cellular organisms, so cell theory covers both observations. The presence of a membrane-bound nucleus is not a condition for being a cell, while a mineral crystal is not an organism. Protein folding in solution concerns a molecule rather than a cell or organism to which cell theory applies.

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Question 11: Which observations are within the scope of cell theory?… · Cells and Microscopy · Questena