If you eat a cracker made of carbohydrates how is it digested by beginning with the mouth and ending liver?
When you eat a cracker made of carbohydrates, the process of digestion begins in your mouth. First, your teeth break the cracker down into smaller pieces. Then, your saliva, which contains enzymes called amylases, begins to break down the carbohydrates into simple sugars, which can be absorbed by your body.
After you swallow the cracker, it travels down your esophagus to your stomach. The stomach is a muscular sac that churns the food and mixes it with gastric juices, which contain hydrochloric acid and more enzymes, including pepsin and lipases. These enzymes further break down the proteins, fats, and carbohydrates in the cracker.
From the stomach, the partially digested food moves into the small intestine. The small intestine is a long, coiled tube that is lined with villi, which are small, finger-like projections. The villi are covered in microvilli, which are even smaller projections that increase the surface area of the small intestine and help it to absorb nutrients.
As the food moves through the small intestine, it is mixed with bile, which is produced by the liver and helps to break down fats. The small intestine also produces enzymes such as amylase, protease, and lipase, which further break down the carbohydrates, proteins, and fats in the food. The products of digestion, such as glucose, amino acids, and fatty acids, are absorbed by the villi and transported to the liver through the bloodstream.
The liver is a large, complex organ that plays a vital role in digestion. It filters toxins from the blood, stores glycogen for energy, and produces bile. The liver also helps to regulate the body's metabolism of carbohydrates, proteins, and fats.
After the liver has processed the products of digestion, they are sent to the rest of the body to be used for energy or stored as fat.