INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

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What is the function of lysozyme?

Inactivates enzymes
Destroys cell walls
Absorbs toxins
Inactivates iron

The correct answer is: Destroys cell walls

Lysozyme is a type of enzyme that is found in our body fluids, such as saliva and tears. Its main function is to break down the cell walls of certain bacteria, making it an important part of our immune system. Option A, inactivating enzymes, is incorrect because lysozyme is not responsible for inactivating enzymes within the body. Option C, absorbing toxins, is incorrect because while lysozyme does have some antibacterial properties, its main function is not to absorb toxins. Option D, inactivating iron, is incorrect because lysozyme does not have any known function in relation to iron. Therefore, the correct and most specific answer is B, as it accurately describes the primary function of lysozyme in breaking down cell walls.