Siderophores Are Necessary for Movement of Iron into Cells Because

question 30

Multiple Choice

Siderophores are necessary for movement of iron into cells because:

• A)free iron will otherwise pass electrons to oxygen and be unavailable
• B)nitrate will compete for free iron under oxic conditions
• C)nitrate will reduce Fe³+ under oxic conditions
• D)neutral pH conditions such as those in cells will reduce Fe³+to Fe²+
• E)none of the choices is correct

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