Blood is a fluid that transports nutrients, oxygen, and metabolic wastes throughout the body. It also helps maintain the proper pH level for cellular functioning.

Serum and plasma are two different components of blood that are commonly confused with one another. In fact, both are important.

What is Plasma?

Plasma is a liquid component of your blood, containing water and proteins. It is responsible for distributing water, hormones, and other substances to the parts of your body that need them.

It also contains antibodies (immunoglobulins) that help your body fight infections, protect against disease and prevent bleeding from small injuries. It also contains clotting factors that control blood loss when there are breaks in the smooth lining of your blood vessels.

Plasma is a highly complex mixture of molecules. It is composed of proteins, salts and other chemicals. It is an important part of your blood, forming approximately 55% of your blood volume.

What is Serum?

Serum is a light, oil- or water-based liquid that you spread on your skin to get targeted skin benefits. It contains high concentrations of a single or a few key ingredients and can be used to target specific concerns like wrinkles, acne, blotchiness, or dryness.

Serum can be applied to clean skin (after cleansing and toning) before your moisturizer to deliver powerful skincare ingredients deep into your skin. This makes them a great addition to your twice-daily skincare routine.

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Basically, it’s the watery liquid that’s left behind when blood clots. It can be extracted from blood to make antiserum, which is made with antibodies from someone who has recovered from the disease to protect the person who’s recovering from it.

What is the Composition of Plasma?

Plasma makes up about 55 percent of your blood and looks like a straw-colored fluid. It carries nutrients, hormones, and waste products from different tissues to the organs responsible for detoxifying and excreting them.

It also maintains the body’s pH and osmotic load, as well as provides a defense against viruses and bacteria. It contains a variety of proteins (including the main protein albumin) and immunoglobulins that alert your immune system to foreign substances in the blood.

Composed of 90 percent water, plasma is also a rich source of lipids and salts that are essential for maintaining the body’s chemical balance. It also contains the coagulation factors and antibodies required for blood clotting.

The formed elements in plasma include erythrocytes (red blood cells), leukocytes (white blood cells), and thrombocytes (platelets). Erythrocytes transport oxygen from the lungs to the tissues and carbon dioxide back to the lungs for exhalation. Leukocytes help control the immune system. Platelets form a plug when activated that helps blood clot in the event of injury.

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What is the Composition of Serum?

The composition of serum consists of water, electrolytes, glucose, proteins (albumins, globulins, fibrinogen), lipoproteins, triglycerides, and cholesterol. Serum also contains other proteins, antibodies, and nutrients.

Blood is a fluid connective tissue made up of red blood cells that carry oxygen and white blood cells that fight infections. Plasma is the liquid portion of blood and makes up 55% of the total volume of blood.

Serum consists of protein-containing liquids that have been filtered out of a blood sample after centrifugation. This separation eliminates platelets and cellular elements that might affect the test results.