përthithjen

Përthithjen is the Albanian word for absorption. It refers to the process by which one substance takes up and holds another substance. This can occur in various contexts, including physical, chemical, and biological systems.

In physics, absorption describes the phenomenon where a material takes in energy, such as light or heat. For instance, dark surfaces absorb more light than light surfaces, leading to a greater increase in temperature.

Chemically, absorption involves the binding of molecules of one substance into the bulk of another. This is distinct from adsorption, where molecules adhere to the surface of another substance. A common example is a sponge absorbing water.

In biology, absorption is a crucial process for living organisms. For example, the small intestine in humans absorbs nutrients from digested food into the bloodstream. Plants absorb water and minerals from the soil through their roots. Respiration also involves absorption, as lungs absorb oxygen from the air.

The rate and efficiency of absorption can be influenced by factors such as the properties of the absorbing material, the substance being absorbed, temperature, pressure, and concentration gradients. Understanding absorption is vital in fields ranging from material science and environmental engineering to medicine and agriculture.