Bacterial Cell Wall Structure

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Stores excess nutrients for the bacteria
Facilitates cellular communication and signaling
Regulates the passage of genetic material
Confers rigidity and shape, and protects the cell against osmotic shock (correct)

10-25 nm thick, strong and relatively rigid, with some elasticity and openly porous (B) Signup and view all the answers

30-70% (C) Signup and view all the answers

Up to 40 sheets (D) Signup and view all the answers

Teichoic acid fibers (B) Signup and view all the answers

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The bacterial cell wall is primarily composed of peptidoglycan, a complex polymer made of sugars and amino acids.
Its main function is to provide structural support and protection against osmotic pressure, preventing cell lysis.
Located outside the plasma membrane, the cell wall acts as a barrier that encapsulates the bacterial cell.

The bacterial cell wall has a unique structure that varies between Gram-positive and Gram-negative bacteria.
Gram-positive cell walls are characterized by a thick peptidoglycan layer, which can comprise up to 90% of its total weight.
In Gram-positive bacteria, the peptidoglycan layer may consist of multiple sheets that enhance its strength and rigidity.

Teichoic acids are common components found outside the peptidoglycan layer in many Gram-positive bacteria, contributing to cell wall stability and functionality.