Question
Which of the following ionic species is present in hemoglobin and responsible for transformation of oxygen ?
MHT CET
Chemistry
Biomolecules
2026
MHT CET 2026 (16 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. Ca ^ +2
- B. Co ^ +3
- C. Fe ^ +3
- D. Mg ^ +2
Answer
C. Fe ^ +3
Step-by-step solution
Hemoglobin is an iron-containing metalloprotein found in red blood cells, responsible for the transport of oxygen in the body. The central metal ion in the heme group of hemoglobin is iron (specifically Fe ^ +2 in its active state). Among the given options, the iron species is the correct choice. Answer: Fe ^ +3
Related: Chemistry — Biomolecules · All PYQ Banks