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Bacterial Cell Wall Structure Quiz

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Questions and Answers

What is the main function of the bacterial cell wall?

To protect the plasma membrane from adverse changes (correct)
To store nutrients for the bacterium
To help maintain the shape of a bacterium
To regulate the entry of substances into the cell

Why is the cell wall important clinically?

It is responsible for maintaining the shape of the bacterium
It regulates the entry of substances into the cell
It helps in nutrient storage for the bacterium
It contributes to the ability of some species to cause disease (correct)

What is the composition of the bacterial cell wall used for?

To differentiate major types of bacteria (correct)
To maintain the shape of the bacterium
To store nutrients for the bacterium
To regulate the entry of substances into the cell

Which structure does the cell wall serve as a point of anchorage for?

Flagella (D) Signup and view all the answers

What is the main function of the Peptidoglycan in the bacterial cell wall?

To maintain the shape of the bacterium and serve as an anchorage for flagella (B) Signup and view all the answers

Which type of bacteria has a thicker layer of Peptidoglycan in its cell wall?

Gram-positive bacteria (B) Signup and view all the answers

What happens to the plasma membrane and cell wall of a bacterial cell as its volume increases?

They extend as needed (D) Signup and view all the answers

What is the significance of the cell wall in relation to disease-causing ability of bacteria?

It is important for preventing bacterial cells from rupturing (C) Signup and view all the answers

What is the primary role of the cell wall in preventing bacterial cells from rupturing?

To protect the fragile plasma membrane from adverse changes in the external environment (C) Signup and view all the answers

Which component of the bacterial cell wall is used to differentiate major types of bacteria based on their chemical composition?

Peptidoglycan (D) Signup and view all the answers

In Gram staining, why do Gram-positive bacteria appear blue-black or purple after being treated with acetone or alcohol?

Due to their relatively thick layer of Peptidoglycan (A) Signup and view all the answers

What is the site of action of some antibiotics in bacterial cells?

Peptidoglycan layer (C) Signup and view all the answers

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