Question

Cell theory was proposed by ...........?

• A. Theodor Schwann, Watson and Robert Hooke
• B. Theodor Schwann, Matthias Schleiden and Robert Hooke
• C. Theodor Schwann, Matthias Schleiden and Rudolf Virchow
• D. Theodor Schwann, Rudolf Virchow and Robert Hooke

Hint:

Cell theory is a fundamental concept in biology, highlighting that all living organisms are composed of cells and that cells are the basic structural and functional units of life.

Answer 1

The Correct Option is C

The Cell Theory was proposed by Theodor Schwann, Matthias Schleiden, and Rudolf Virchow. Schwann and Schleiden first proposed that all living organisms are composed of cells, and that the cell is the fundamental unit of structure and function. Rudolf Virchow later added that all cells come from pre-existing cells, completing the cell theory.

(1) Schwann and Schleiden:
- Schwann (a zoologist) and Schleiden (a botanist) jointly developed the early stages of the cell theory by proposing that the cell is the basic unit of life in both plants and animals.

(2) Virchow:
- Rudolf Virchow added the final piece to the theory, emphasizing that "Omnis cellula e cellula", meaning that all cells arise from pre-existing cells.

(3) Why Other Options Are Incorrect:
- Watson (Option 1) is known for his role in discovering the structure of DNA, not for proposing the cell theory.
- Robert Hooke (Option 2) discovered and coined the term "cell," but did not contribute to the development of cell theory alongside Schwann and Schleiden.
- Robert Hooke (Option 4) did not collaborate with Virchow to propose the cell theory.

Conclusion: The Cell Theory was proposed by Theodor Schwann, Matthias Schleiden, and Rudolf Virchow, forming the foundation of modern biology.