Solved UPSC CDS/OTA Question
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Q · Nutrition and Nutrients medium · 45s
Which mineral is required for oxygen transport in the blood?
TopicNutrition and Nutrients
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Iron is a key component of hemoglobin in red blood cells, which binds oxygen in the lungs and releases it to tissues. Iron deficiency leads to microcytic hypochromic anemia, causing fatigue and impaired cognition. Dietary sources include red meat, legumes, and fortified cereals; vitamin C enhances iron absorption from plant sources.
Final Answer: Option C - Iron