Which statement is not a part of the cell theory?

Question

Cells come from preexisting cells.
Cells are the basic unit of function of living things
Cell parts such as chloroplasts are self-replicating
Cells are the basic unit of structure of living things

Answer 1

The statement that is not a part of the cell theory is: "Cell parts such as chloroplasts are self-replicating."

Cell theory primarily includes the following principles:

1. All living organisms are composed of one or more cells.
2. The cell is the basic unit of structure and function in living things.
3. All cells arise from preexisting cells.

The self-replication of cell parts like chloroplasts is not a principle of cell theory.