Question

Cells arise from the pre-existing cells was stated by :

• A. Hooke
• B. Schleiden
• C. Corti
• D. Virchow

Answer 1

The correct option is D

Virchow

The correct option is D.

Explanation of correct option:-

1. Cells arise from the pre-existing cells was stated by Rudolf Virchow.
2. M.J.Schleiden and Theodor Schwann proposed a theory called “cell theory”, according to which, “all the living beings are made up of cells which arise from pre-existing cells”.
3. Although they failed to explain how the cells arise from pre-existing cells.
4. Then later in 1885, Rudolf Virchow modified the existing cell theory and stated that all new cells develop from the division of pre-existing cells.

Explanation of incorrect options:-

Option A

1. Robert Hooke was the first one who introduced the cell in 1665.
2. He observed small compartments like ‘Honeycomb’ while working on a slice of cork with the help of his own created microscope.

Option B

1. Schleiden, a German botanist found that all living things are composed of different kinds of cells.
2. Schleiden (1938) concluded that all living beings whether plants or animals are composed of an assemblage of cells.

Option C

1. Corti (1772) was the first to point out that a living cell contains some liquid substance which is later named protoplasm by other scientists.

Final answer:- Cells arise from the pre-existing cells was stated by Rudolf Virchow.