Which one of the following sets of elements is essential for the produ

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Which one of the following sets of elements is essential for the production of red blood cells in human body?

Arsenic and zinc only
Iron and zinc only
Arsenic and iron only
Arsenic, iron, lead and zinc
This question was previously asked in
UPSC Geoscientist – 2022
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Iron and zinc are essential elements for the production of red blood cells in the human body.
Iron is a critical component of hemoglobin, the protein in red blood cells responsible for carrying oxygen. Zinc is essential for various metabolic functions, including DNA synthesis and cell division, which are necessary for erythropoiesis (red blood cell production).
While iron is directly incorporated into hemoglobin, zinc plays a crucial supporting role in enzyme activity and cellular processes involved in red blood cell formation and maturation. Arsenic and lead are heavy metals that are toxic and not essential for red blood cell production; in fact, lead toxicity can impair RBC synthesis. Other nutrients like Vitamin B12 and folate are also vital for healthy red blood cell production.

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