Question

Number of haemoglobin molecules present in an average human body is

• A. 6000 million million
• B. 6000 million million million
• C. 6 million million million
• D. 600 million million million

Answer 1

Answer: (B)

6000 million million million

Hemoglobin is an oxygen-carrying protein molecule present in Red blood cells of human beings. Each RBC has approximately 270 million Haemoglobin molecules. Thus in an average human body, the number of hemoglobin molecules are 6000 million million million.

So, the correct answer is '6000 million million million'.