Question

multiple choice question
this image illustrates the components of the ______ cell wall.

• gram - positive
• gram - negative
• mycobacterial

Explanation:

To determine the cell wall type, we analyze the structure: Gram - negative bacteria have an outer membrane (lipopolysaccharide layer, shown here with components like the outer membrane and a thin peptidoglycan layer between the inner and outer membranes), while Gram - positive has a thick peptidoglycan layer and no outer membrane, and mycobacterial has a unique waxy layer (not matching this structure). The image shows an outer membrane and the typical layered structure of Gram - negative cell wall.

Answer:

B. Gram - negative