Question

haemoglobin in the blood is a complex protein rich in (1)iron(2)silve(3)copper(4)gold​

Answer 1

Answer:

option 1 iron is your answer

Answer 2

Answer:

iron

Explanation:

Hemoglobin is the protein in blood that is rich in iron and gives it the red color. It makes up about 95% of a red blood cell and has an oxygen binding capacity of 1.34 mL O2/g, which satisfies the need for the average adult consumption of 250 mL of oxygen per minute.