👉 A colored fluid, often referred to as a bodily fluid or serum, is a clear or slightly translucent liquid that circulates through the body's systems, primarily composed of water, proteins, salts, and various organic and inorganic substances. This fluid plays a crucial role in maintaining homeostasis, transporting nutrients and oxygen, removing waste products, and supporting cellular functions. The color can vary depending on the specific components present; for instance, blood appears red due to hemoglobin, a protein that binds oxygen, while urine can range from clear to dark yellow or brown based on its composition. These fluids are essential for sustaining life and are vital in diagnosing various health conditions through laboratory tests.
