The red colouring matter of blood which transports oxygen contains an element in a system of rings. The element is:

  • A
    Iron
  • B
    Magnesium
  • C
    Cobalt
  • D
    Calcium

Explore More

Similar Questions

Duffy,Kidd,and Lewis are the names of . . . . . . .

$R.B.C.$ in adults are formed in:

One of the factors required for the maturation of erythrocytes is

The name $Rh$ blood group is derived from

Which of the following is true regarding white blood cells $(WBCs)$?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo