Choose the statement below that correctly describes how carbohydrates are digested and absorbed or how blood sugar is regulated.
1. Glucose is converted into fructose and galactose in the liver.
2. Most digestion of carbohydrates takes place in the stomach with the help of pancreatic amylase.
3. Insulin and glucagon help to regulate the levels of all monosaccharides in the bloodstream.
4. Salivary amylase breaks down complex carbohydrates into monosaccharides and disaccharides which can be absorbed by the stomach.
5. Enzymes break disaccharides into monosaccharides, which are absorbed by the cells of the small intestine and then pass into the bloodstream.