Final answer:
The statement about insulin promoting de novo lipogenesis in the liver, which converts excess carbohydrates into fats, is True. Insulin regulates blood glucose by stimulating this process, leading to the storage of energy as triglycerides in the liver.
Step-by-step explanation:
The statement "In the liver, insulin promotes de novo lipogenesis, which is the production of fats from excess ingested carbohydrates." is True. Insulin, a hormone secreted by the pancreas, facilitates the uptake of glucose into cells and plays a key role in lipid metabolism. Specifically, when carbohydrate intake is high, resulting in excess glucose in the blood, insulin stimulates the liver to convert excess glucose into fatty acids through the process of lipogenesis. This excess acetyl CoA, due to its availability, initiates lipogenesis in the liver, where it is transformed into triglycerides and other lipids for storage.
De novo lipogenesis is a metabolic pathway that converts acetyl CoA to fatty acids, which are then assembled into triglycerides. This path serves as an efficient way of storing the energy from carbohydrates when they are ingested in quantities that exceed the body's immediate energy needs. Therefore, insulin does not only regulate blood glucose levels but also promotes the synthesis of triglycerides in the liver, which supports the True option for the provided statement.