Question

multiple choice question the cell wall component indicated by the letter a is ______. the flagellum teichoic acid lipid a a pilus

Explanation:

To solve this, we analyze each option:

• Flagellum: A long appendage for motility, not a cell wall component here.
• Teichoic acid: Found in Gram - positive bacterial cell walls, associated with the peptidoglycan layer. The structure with A seems to fit teichoic acid's location in the cell wall.
• Lipid A: Part of lipopolysaccharide in Gram - negative outer membrane, not matching A's location.
• Pilus: Hair - like appendage for attachment/conjugation, not a cell wall component.

So teichoic acid is the correct identification for component A.

Answer:

B. teichoic acid