Question

Which of these is a distinguishing characteristic between the domains Bacteria and Archaea?

Answer 1

Answer:

This question lacks options, the options are:

a. Their size

b. The chemical composition of the cell wall and cell membrane

c. Their ability to grow at high temperatures

d. The shape of their mitochondria

The answer is B

Explanation:

Living organisms has been classified into three domains namely; Eukarya, Archaea, and Bacteria. However, domians Archaea and Bacteria are most similar in the sense that they both have cells without a membrane-bound nucleus, hence, they are both PROKARYOTIC. Also, they are both strictly unicellular organisms.

Despite these similarities, differences exists between them. One major difference is in the chemical composition of the cell wall and cell membrane. The cell walls of bacteria cells have a unique structure called PEPTIDOGLYCAN. This is absent in the Archeae group. Also, the cell membrane of Archeae is made up of ether linked lipids compared to the ester-linked lipids that constitutes bacteria cell