Question

Which one of the following does not differ in E. coli and Chlamydomonas?

• A. Ribosomes
• B. Chromosomal Organization
• C. Cell wall
• D. Cell membrane

Answer 1

The correct option is D Cell membrane

• E coli is a prokaryotic cell whose cell wall is made up of peptidoglycan while Chlamydomonas a eukaryotic plant, the cell wall is made up of cellulose. Prokaryotic cells have 70S ribosomes while eukaryotes have 80S ribosomes in their cytoplasm.
• Prokaryotes do not have histone proteins associated with their DNA while eukaryotes have histone proteins for the chromosomal organisation. The cell membrane structure is essentially the same in a prokaryotic and eukaryotic cell and made up of a phospholipid bilayer.
• Thus, the correct answer is option D.