Multiple Choice
A microorganism that thrives under high hydrostatic pressure is called a(n):
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1. Introduction to Microbiology
Introduction to Microbiology
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Microbial hyaluronidase, coagulase, and streptokinase are examples of which type of molecules produced by pathogens?
A
Endotoxins
B
Antibiotics
C
Capsular polysaccharides
D
Exoenzymes
Verified step by step guidance1
Understand the role of the molecules mentioned: hyaluronidase, coagulase, and streptokinase are produced by pathogens to aid in infection and spread within the host.
Recall that endotoxins are components of the outer membrane of Gram-negative bacteria and are not enzymes but rather toxins released upon bacterial cell death.
Recognize that antibiotics are substances produced by microorganisms to inhibit or kill other microbes, not molecules produced by pathogens to facilitate infection.
Identify that capsular polysaccharides are carbohydrate structures forming a protective capsule around some bacteria, helping evade the immune system but not enzymes.
Conclude that since hyaluronidase, coagulase, and streptokinase are enzymes secreted by pathogens to break down host tissues or blood clots, they are classified as exoenzymes.
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