Which organ metabolizes carbs, lipids, and proteins while also filtering blood?

The liver is a vital organ that plays a central role in metabolism and overall homeostasis. It is responsible for the metabolism of carbohydrates, lipids, and proteins.

Regarding carbohydrates, the liver helps regulate blood glucose levels by converting excess glucose into glycogen for storage and releasing glucose back into the bloodstream when needed. In terms of lipids, the liver synthesizes cholesterol and produces bile, which is essential for fat digestion and absorption. When it comes to proteins, the liver is involved in protein synthesis, including the production of enzymes and hormones, and it also plays a crucial role in the urea cycle, where it converts ammonia, a toxic byproduct of protein metabolism, into urea for excretion.

Beyond its metabolic functions, the liver also acts as a filter for blood. It processes nutrient-rich blood coming from the digestive tract via the portal vein, removing toxins, drugs, and other harmful substances. This detoxification process is vital for maintaining the body's internal environment and overall health.

The other options do not encompass the comprehensive metabolic and filtering functions that the liver provides. The pancreas primarily deals with hormone regulation and enzyme secretion for digestion, the gallbladder stores bile until needed for digestion, and the kidneys are primarily involved in filtering waste from the