Absolute zero is the coldest possible temperature, at which no heat is left in a substance and its particles display no motion whatsoever. Absolute zero is equal to 0 K on the Kelvin scale, which is... Absolute zero is the coldest possible temperature, at which no heat is left in a substance and its particles display no motion whatsoever.
Serum is plasma that has been allowed to clot. It is prepared in the same way as plasma; however, the blood is collected into a tube with no anticoagulant. While spinning in the centrifuge, the clot moves with the cells to the bottom of the blood collection tube, leaving the serum on top.
Plasma is NOT the same as serum. Serum is plasma which has had the clotting elements removed. Plasma is 91.5% water and 8.5% solutes (proteins). Many of the proteins found in plasma are also found elsewhere in the body, but when found in the plasma they are referred to as plasma proteins.lasma is NOT the same as serum. Serum is plasma which has had the clotting elements removed. Plasma is 91.5% water and 8.5% solutes (proteins). Many of the proteins found in plasma are also found elsewhere in the body, but when found in the plasma they are referred to as plasma proteins.