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Questions and Answers
What is the main component of bacterial cell wall?
What is the main component of bacterial cell wall?
- Peptidoglycan (correct)
- Teichoic acid
- Mucopolysaccharide
- Lipopolysaccharide
Which amino acid is present in the tetrapeptide of peptidoglycan?
Which amino acid is present in the tetrapeptide of peptidoglycan?
- D-isoglutamine (correct)
- L-alanine
- D-alanine
- L-lysine
What is the function of teichoic acid in gram-positive bacteria?
What is the function of teichoic acid in gram-positive bacteria?
- To supply Mg+
- To act as an antigenic determinant (correct)
- To regulate cell division
- To provide rigidity to the cell wall
What is the main difference between the cell walls of gram-positive and gram-negative bacteria?
What is the main difference between the cell walls of gram-positive and gram-negative bacteria?
What is the function of Braun's lipoproteins in gram-negative bacteria?
What is the function of Braun's lipoproteins in gram-negative bacteria?
What is the function of periplasmic space in gram-positive bacteria?
What is the function of periplasmic space in gram-positive bacteria?
What is the main component of the second membrane structure in gram-negative bacteria?
What is the main component of the second membrane structure in gram-negative bacteria?
What is the function of porin proteins in gram-negative bacteria?
What is the function of porin proteins in gram-negative bacteria?
What is the function of TonB-dependent transports in gram-negative bacteria?
What is the function of TonB-dependent transports in gram-negative bacteria?
What is the effect of lysozymes on bacterial cells?
What is the effect of lysozymes on bacterial cells?
What is the effect of penicillin on bacterial cells?
What is the effect of penicillin on bacterial cells?
Why are gram-negative bacteria naturally resistant to large peptidoglycan targeting antibiotics such as vancomycin?
Why are gram-negative bacteria naturally resistant to large peptidoglycan targeting antibiotics such as vancomycin?
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