Question

What is a serum?

Answer 1

Hint: The human serum is the circulating carrier of the exogenous and the endogenous liquids in the blood. It allows substances to stick to the molecules within the serum and be buried within it. The human serum, therefore, helps in the transportation of the fatty acids and thyroid hormones which act on most of the cells found in the body.

Complete answer: The blood plasma without the clotting factors is a straw-colored fluid called the serum. The serum is the clear liquid that can be separated from the clotted blood. The serum differs from the plasma which is the liquid portion of the normal unclotted blood containing the red and white cells and the platelets. It is the clot that makes the difference between the serum and the plasma.
Additional information:
The serum is a plasma component of blood that lacks coagulation factors and is similar to the interstitial fluid in which the correct composition of main ions acting as the electrolytes is essential for the normal functioning of the muscles and the nerves. The other components in the serum include proteins that assist with maintaining the pH and the osmotic balance while giving viscosity to the blood; antibodies, or too specialized proteins that are important for the defense against viruses and bacteria. The human serum albumin is the most abundant protein in human blood plasma and is synthesized in the liver. The albumin, which constitutes about one-half of the blood serum protein, transports hormones and fatty acids, buffers pH, and also maintains the osmotic pressures. The immunoglobulin is a protein antibody produced in the mucosal lining which plays an important role in antibody-mediated immunity.

Note: The serum blood level describes the amount of a given medication present in the blood at the time of testing. The serum is a clear, yellowish coloured fluid which is part of the blood. It does not contain white or red blood cells or a clotting factor. It is the blood plasma without having the fibrinogens.