Multiple Choice
In the figure, which diagram of a bacterial cell wall contains teichoic acids?
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7. Prokaryotic Cell Structures & Functions
Introduction to Bacterial Cell Walls
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Which type of bacterial enzyme helps spread Streptococcus pyogenes by digesting blood clots?
A
Streptokinase
B
Coagulase
C
Lysozyme
D
Hyaluronidase
Verified step by step guidance1
Understand the role of each enzyme listed in the context of bacterial infection and spread.
Recall that Streptokinase is an enzyme produced by Streptococcus pyogenes that helps dissolve blood clots by converting plasminogen to plasmin, which breaks down fibrin in clots.
Recognize that Coagulase works oppositely by promoting clot formation, which helps bacteria evade the immune system but does not aid in spreading by digesting clots.
Note that Lysozyme breaks down bacterial cell walls, mainly targeting peptidoglycan, and is part of the host's defense rather than a spreading factor for bacteria.
Understand that Hyaluronidase breaks down hyaluronic acid in connective tissue, aiding bacterial spread through tissues but not specifically by digesting blood clots.
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