Cells which lack a well-defined nucleus and membrane-bound organelles are called:
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Correct answer: Prokaryotic cells
Prokaryotic cells (Pro = primitive, Karyon = nucleus) lack a nuclear envelope and membrane-bound organelles like mitochondria or Golgi bodies.
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More Cell Theory and the Basic Unit of Life questions
- Which of the following scientists concluded that the presence of a cell wall is a unique feature of plant cells?
- The volume of a cell is generally proportional to:
- Who first observed and described a live cell?
- In 1838, Matthias Schleiden, a German botanist, examined a large number of plants and concluded that:
- Theodore Schwann, after studying different types of animal cells, reported that cells had a thin outer layer which is today known as the:
- Which scientist modified the hypothesis of Schleiden and Schwann to give the cell theory a final shape?