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Questions and Answers
Which bacteria uses coagulase to cause blood to coagulate?
Which bacteria uses coagulase to cause blood to coagulate?
- Corynebacterium diphtheriae
- Staphylococcus aureus (correct)
- Streptococcus
- Clostridium perfringens
What is the name of the enzyme that breaks down hyaluronic acid, found in connective tissues?
What is the name of the enzyme that breaks down hyaluronic acid, found in connective tissues?
- Kinase
- Hyaluronidase (correct)
- Collagenase
- Lecithinase
Which of the following is NOT a type of hemolysin?
Which of the following is NOT a type of hemolysin?
- Beta (β) Hemolytic
- Gamma (γ) Hemolytic
- Delta (δ) Hemolytic (correct)
- Alpha (α) Hemolytic
Which bacteria uses a capsule to evade the host's natural defense?
Which bacteria uses a capsule to evade the host's natural defense?
What is the name of the enzyme that breaks down collagen, found in many connective tissues?
What is the name of the enzyme that breaks down collagen, found in many connective tissues?
Which of the following is an example of an antiphagocytic factor?
Which of the following is an example of an antiphagocytic factor?
Which bacteria uses surface proteins to evade the host's natural defense?
Which bacteria uses surface proteins to evade the host's natural defense?
What is the name of the enzyme that breaks down lecithin, a mixture of fats essential to cells in the human body?
What is the name of the enzyme that breaks down lecithin, a mixture of fats essential to cells in the human body?
Which of the following bacteria is an example of surviving inside phagocytes?
Which of the following bacteria is an example of surviving inside phagocytes?
What is the primary mechanism of immune evasion used by bacteria that exhibit genetic variability?
What is the primary mechanism of immune evasion used by bacteria that exhibit genetic variability?
What is the term used to describe the capacity of an organism to cause disease by means of toxins produced by the organism?
What is the term used to describe the capacity of an organism to cause disease by means of toxins produced by the organism?
Which type of toxin damages host cell membranes?
Which type of toxin damages host cell membranes?
What is the primary difference between exotoxins and endotoxins?
What is the primary difference between exotoxins and endotoxins?
What is the component of endotoxins responsible for toxicity?
What is the component of endotoxins responsible for toxicity?
Which of the following is an example of a type III toxin?
Which of the following is an example of a type III toxin?
What is the term used to describe the ability of bacteria to resist the action of phagocytes?
What is the term used to describe the ability of bacteria to resist the action of phagocytes?
What is the primary function of fimbriae or pili in bacterial adhesion?
What is the primary function of fimbriae or pili in bacterial adhesion?
What is the minimum number of Vibrio cholerae cells required to cause disease in 50% of inoculated test animals?
What is the minimum number of Vibrio cholerae cells required to cause disease in 50% of inoculated test animals?
What is the primary role of surface hydrophobicity in bacterial adhesion?
What is the primary role of surface hydrophobicity in bacterial adhesion?
Which of the following is an exception to the need for bacterial invasion to cause disease?
Which of the following is an exception to the need for bacterial invasion to cause disease?
What is the term for the lethal dose of a microbe's toxin that will kill 50% of experimentally inoculated test animals?
What is the term for the lethal dose of a microbe's toxin that will kill 50% of experimentally inoculated test animals?
What is the primary role of glycocalyx in bacterial adhesion?
What is the primary role of glycocalyx in bacterial adhesion?
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