What are the functions of the liver in metabolism?

The liver plays a crucial role in metabolism by processing nutrients, detoxifying harmful substances, and producing bile.

The liver is a vital organ that performs a multitude of functions related to metabolism. It is responsible for the processing of nutrients absorbed from the diet, including carbohydrates, proteins, and fats. The liver converts these nutrients into substances that the body can use, stores them, and supplies cells with them when needed. For instance, it converts glucose into glycogen for storage and breaks it down when the body needs energy.

Additionally, the liver plays a significant role in the detoxification of harmful substances. It neutralises toxins, such as alcohol and drugs, and converts them into harmless substances or makes sure they are removed from the body. This detoxification process is crucial for maintaining the body's overall health and preventing damage to other organs.

The liver also produces bile, a substance needed for digestion. Bile helps to break down fats and aids in their absorption in the small intestine. Without bile, the body would struggle to process and absorb dietary fats.

Furthermore, the liver is involved in the metabolism of proteins. It deaminates excess amino acids to form urea, which is then excreted in the urine. This process is essential for maintaining the balance of nitrogen in the body. The liver also synthesises plasma proteins, which play a key role in blood clotting and immune responses.

In summary, the liver is a metabolic powerhouse, processing nutrients, detoxifying harmful substances, and producing bile for digestion. Its functions are essential for maintaining the body's overall health and metabolic balance.