Question

how is Oxygen and Carbon dioxide transported to our body

Answer 1

Haemoglobin: The protein inside red blood cells (a) that carries oxygen to cells and carbon dioxide to the lungs is haemoglobin (b). Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen. It is the iron in hemoglobin that gives blood its red color.

Answer 2

ANSWER :

The blood helps in the transportation of oxygen and carbon-dioxide in humans.

The R.B.Cs have a large surface area which helps them to absorb oxygen and carbon - dioxide on their surface ,

The R.B.Cs have haemoglobin in their surface.

This particularly forms oxy-haemoglobin with oxygen and carbamino-haemoglobin with carbon-dioxide .

This breaks up to give oxygen in the tissues and it transports carbon-dioxide from tissues to lungs.

This way they are transported throughout the body !