The special components of Gram-positive cell wall is ()
A. peptidoglycan
B. chitin
C. cholesterol
D. teichoic acids
E. none of the above
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The antibacterial mechanism of penicillin is ()
A. interference of bacterial protein synthesis
B. inhibition of bacterial nucleic acid metabolism
C. inhibition of bacterial enzyme activity
D. interference peptidoglycan tetrapeptide side chain and pentapeptide cross-linked bridge
E. none of the above
The bacteriostatic structure with anti-phagocytosis is ()
A. flagellum
B. capsules
C. cell wall
D. pili
E. none of the above
Which one of the following is NOT true about L-bacteria ()
A. Variable shape
B. Gram negative
C. No reversible to normal form
D. Cause chronic infection
E. none of the above
Which one of the following is NOT true about the basic structure of bacteria ()?
A. flagellum
B. cell wall
C. cell membrane
D. cytoplasm
E. none of the above
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