7 Questions
What is the composition of the bacterial cell wall?
Peptidoglycan
What is the primary function of the bacterial cell wall?
Confers rigidity and shape, and protects the cell against osmotic shock
Where is the bacterial cell wall located?
External to the cytoplasmic membrane
What characterizes the structure of the bacterial cell wall?
10-25 nm thick, strong and relatively rigid, with some elasticity and openly porous
What percentage of the Gram-positive cell wall is made up of peptidoglycan?
30-70%
How many sheets of peptidoglycan can the peptidoglycan layer in Gram-positive bacteria comprise?
Up to 40 sheets
What is a common component found outside the peptidoglycan in many Gram-positive bacteria?
Teichoic acid fibers
Test your knowledge of the structure and composition of the outermost component of bacterial cells, which confers rigidity, shape, and protection. Explore the characteristics of this essential feature of bacterial cells.
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