Proteins
cell membrane
Proteins
cell membrane
Carrier proteins
red blood cells
oxygen transport to cell & carbondioxide away from cells.
whats the answer?
The circulatory system transports materials in the body.
The cardiovascular system transports gases between the lungs and the body's cells.
The circulatory system transports the substances in your blood to your body cells.
haemoglobin in red blood cells
hemoglobin
probably your veins
The circulating blood
water
the lysomes if not what else