Which of these bacteria lack a cell wall?
A. Escherichia
B. Pseudomonas
C. Mycoplasma
D. Mycobacterium
Answer:C
Which of these bacteria lack a cell wall?
A. Escherichia B. Pseudomonas C. Mycoplasma D. Mycobacterium
Explanation: All bacteria have a cell wall covering the cell membrane, except in the genus mycoplasma. Since all bacteria are prokaryotic organisms, they do not have a well – defined nucleus. The genetic material is naked.