Blood plasma is the fluid part of blood that contains nutrients, glucose, proteins, minerals, enzymes, waste products, antibodies, clotting proteins and hormones. Its role is transporting the substances around the body. Plasma contains 90% water and only 10 the solutes.
Erythrocytes (also called red blood cells) are biconcave disks, containing haemoglobin that transports oxygen. They transport the oxygen to cells all over the body. The surface area to volume ratio is very large on the erythrocytes so
oxygen can diffuse very quickly into the cell. …
