Components suspended in blood plasma include water, proteins (albumin, globulins, fibrinogen), electrolytes (sodium, potassium, calcium, chloride), nutrients (glucose, amino acids, lipids, vitamins), waste products (urea, creatinine, bilirubin), gases (oxygen, carbon dioxide), hormones, enzymes, antibodies, and clotting factors. These substances support various physiological functions, including transportation, immunity, and homeostasis.