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Questions and Answers
Which type of cell wall is more complex, according to the text?
Which type of cell wall is more complex, according to the text?
- Gram negative (correct)
- Neither is more complex
- Gram positive
- Both are equally complex
What is the outer membrane of a Gram negative cell wall composed of?
What is the outer membrane of a Gram negative cell wall composed of?
- Cellulose
- Teichoic acids
- Lipids, lipoproteins, and lipopolysaccharide (LPS) (correct)
- Peptidoglycan
What is absent in the Gram negative cell wall?
What is absent in the Gram negative cell wall?
- Teichoic acids (correct)
- Lipopolysaccharide (LPS)
- Outer membrane
- Peptidoglycan
What is the main component of the Gram positive cell wall?
What is the main component of the Gram positive cell wall?
What contributes to the negative charge on the cell surface?
What contributes to the negative charge on the cell surface?
Which component of LPS may act as an endotoxin?
Which component of LPS may act as an endotoxin?
What is more permeable than the plasma membrane due to the presence of porin proteins and transporter proteins?
What is more permeable than the plasma membrane due to the presence of porin proteins and transporter proteins?
Which type of cells may survive in isotonic environments as they do not produce a cell wall?
Which type of cells may survive in isotonic environments as they do not produce a cell wall?
What is the main function of the glycocalyx in the cell envelope?
What is the main function of the glycocalyx in the cell envelope?
How are capsules different from slime layers?
How are capsules different from slime layers?
In which type of bacteria is the S layer associated with the peptidoglycan surface?
In which type of bacteria is the S layer associated with the peptidoglycan surface?
What is a potential use of the S layer in bacteria?
What is a potential use of the S layer in bacteria?
Which component of the cell envelope protects the cell from predation?
Which component of the cell envelope protects the cell from predation?
What advantage do capsules provide to bacteria?
What advantage do capsules provide to bacteria?
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