INBDE Practice Exam 2025 – Complete Study Guide

Question: 1 / 1180

What is the function of lactoferrin?

Inactivates enzymes

Activates enzymes

Inactivates iron

Lactoferrin is a protein found in our body, mostly in body fluids such as milk, tears, and saliva. Its function is to bind and inactivate excess iron in our body, preventing it from causing harmful effects. This makes option A and B incorrect because lactoferrin does not play a role in enzyme activation, only inactivation. While it does bind and transport iron, it does not absorb it as stated in option D. Therefore, option C is the correct answer.

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Absorbs iron

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