Which organ is responsible for storing nutrients and releasing them into the bloodstream?

• A. Pancreas
• B. Kidney
• C. Liver
• D. Gallbladder

Answer: (C)

The liver is the organ responsible for storing nutrients and releasing them into the bloodstream. It plays a crucial role in metabolizing carbohydrates, proteins, and fats. When you consume food, the nutrients are absorbed into the bloodstream and transported to the liver. The liver processes these nutrients and removes any toxins from the blood. It stores glucose in the form of glycogen, which can be released back into the bloodstream to maintain blood sugar levels when energy is needed. Additionally, the liver synthesizes important proteins and produces bile, aiding in digestion.

In contrast, the pancreas primarily functions in producing digestive enzymes and hormones, such as insulin and glucagon, but it does not store nutrients for release. The kidneys filter blood, removing waste and regulating electrolytes, but they are not involved in nutrient storage. The gallbladder stores bile, a substance essential for fat digestion, but it does not store nutrients or release them into the bloodstream.