Question

Which of the following statements concerning cells of bacteria and archaea is correct?

A.Archaea contain a membrane-bound nucleus; bacteria do not.
B. DNA is present in the mitochondria of both bacteria and archaea.
C. Archaea contain small membrane-enclosed organelles; bacteria do not.
D. DNA is present in both archaea and bacteria.

Answer 1

Archaea and Bacteria have different cell wall compositions and plasma membrane lipids.

Step-by-step explanation:

Typical cells in Archaea and Bacteria contain a cell wall, cell membrane, nucleoid region and often a capsule, flagellum, and pili. However, these are sometimes made from different chemical compounds. Cell walls of Bacteria contain peptidoglycan while Archaea do not. Plasma membrane lipids of Bacteria are fatty acids while those of Archaea are phytanyl groups.