Question

which of the following is a defining characteristic of a prokaryotic cell?
a the method of cellular respiration
b the composition of the cell membrane
c absence of a membrane - bound nucleus
d the method of movement

Explanation:

Prokaryotic cells are defined by the absence of a membrane - bound nucleus. Both prokaryotic and eukaryotic cells can have similar methods of cellular respiration (e.g., glycolysis), similar cell - membrane compositions (phospholipid bilayers), and various methods of movement (e.g., flagella in some prokaryotes and some eukaryotes like sperm cells).

Answer:

C. Absence of a membrane - bound nucleus