Which of the following statements is not part of the cell theory

Question

A. All living things or organisms are made of cells
B. All cells arise from preexisting cells
C. Cell is the basic structural and functional unit of life
D. All cells arise spontaneously

Answer 1

The statement that is not part of the cell theory is:

D. All cells arise spontaneously.

The cell theory states that all living things are made of cells, all cells arise from preexisting cells, and the cell is the basic structural and functional unit of life. Spontaneous generation (the idea that living cells can arise from non-living matter) has been debunked and is not part of the current understanding of cell biology.