Previous year MCQs

UPPSC 2020 GS-I
Question

Which of the following natural substances contains iron (Fe)?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Myoglobin

Detailed Solution:

The correct answer is “Myoglobin”.
Myoglobin is the natural substance that contains iron (Fe). It is a protein found in muscles that binds with oxygen and gives meat its red color.

Chlorophyll, on the other hand, contains magnesium (Mg), while collagen and keratin do not contain iron.

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