NURSING ANM AND GNM

NURSING EXAM QUESTIONS

MICROBIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which gram+ bacteria produce enzymes?
A
Bacillus
B
Staph Aureus
C
Clostridium
D
Streptococcus
Explanation: 

Detailed explanation-1: -Clostridium is a genus of anaerobic, Gram-positive bacteria.

Detailed explanation-2: -Hydrolytic enzymes, such as sialidases and hyaluronidases, are secreted by C. perfringens and degrade surface associated glycans or glycoproteins4, 22. These enzymes are not essential for disease; however, they may still contribute to the overall virulence of the bacterium23.

Detailed explanation-3: -Clostridium perfringens phospholipase C (CpPLC), also called -toxin, is the most toxic extracellular enzyme produced by this bacteria and is essential for virulence in gas gangrene.

Detailed explanation-4: -Clostridium botulinum is an anaerobic, rod-shaped sporeforming bacterium that produces a protein with characteristic neurotoxicity. Under certain conditions, these organisms may grow in foods producing toxin(s). Botulism, a severe form of food poisoning results when the toxin-containing foods are ingested.

Detailed explanation-5: -Clostridia are strictly anaerobic to aerotolerant sporeforming bacilli found in soil as well as in normal intestinal flora of man and animals. There are both gram-positive and gram-negative species, although the majority of isolates are gram-positive.

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