超星 - Quiz of staphylococcus - 查题吧

单选题

How does Staphylococcus aureus affect the matrix between cells in the human body?

A. aureus triggers blood clotting, which coats the matrix and inhibits cellular communication.
B. aureusproduces an hyaluronidase that dissolves hyaluronic acid and thus enables it to pass between the cells.
C. aureusdoes not affect the matrix but instead produces a necrotizing agent that dissolves body cells.
D. aureuspossesses a hyaluronic acid capsule that causes leukocytes to ignore the bacterium as if it were camouflaged.

单选题

Which of the following conditions is a systemic disease caused by staphylococcus?

A. Impetigo
B. folliculitis
C. carbuncle
D. toxic-shock syndrome

单选题

Which statement is not right about infection of Staphylococcus aureus?

A. It can cause hemolysis of RBC,
B. It can cause endotoxemia.
C. It may cause food poison,
D. It may cause pyogenic infection.

单选题

Which toxin produced by S. aureus can injure skin and cause scalded skin syndrome in neonates and loss of the epidermis?

A. enterotoxin;
B. toxic shock syndrome toxin ;
C. hemolysin;
D. Epidermolytic toxin

单选题

Which toxin produced by S. aureus can cause fever, shock and interfere with functions of several organs in the patients?

A. enterotoxin;
B. toxic shock syndrome toxin ;
C. hemolysin;
D. Epidermolytic toxin

单选题

Which toxin produced by S. aureus can cause food poisoning in the patients?

A. enterotoxin;
B. toxic shock syndrome toxin ;
C. hemolysin;
D. Epidermolytic toxin

单选题

Which statement is not right about Staphylococcus aureus?

A. Gram positive coccus,
B. It has O-Ag in its cell wall;
C. It carries SPA on the cell wall surface;
D. The resistant stain can produceb-lactamase.

单选题

Which one of the following antibiotics is the last resort used to treat infections of Gram-positive bacteria resistant, including vancomycin- and methicillin-resistant Staphylococcus aureus.

A. Chloramphenicol,
B. Oxazolidinones,
C. penicillin;
D. tetracyclines

多选题

Which enzyme produced by S produced by S. aureus can enhance spread of bacteria to other location?

A. Hyaluronidase;
B. β-lactamase
C. Staphylokinase;
D. Lipases ;

多选题

Which ones of the following conditions are local diseases caused by staphylococcus?

A. Impetigo
B. folliculitis
C. carbuncle
D. toxic-shock syndrome

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