Question

What is respiration? Describe mechanism of transport of carbon dioxide during respiration.

Answer 1

respiration is the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction.

Answer 2

Oxygen combines with a red pigment called haemoglobin and goes to cells

When it reaches a cell, the oxygen and hemoglobin detach and the oxygen goes to the cell

Carbon dioxide transports in the same way