GENERAL HISTOLOGY

Detailed explanation-1: -The food contains three macronutrients that require digestion before they can be absorbed: fats, carbohydrates, and proteins. Through the process of digestion, these macronutrients are broken down into molecules that can traverse the intestinal epithelium and enter the bloodstream for use in the body.

Detailed explanation-2: -Carbohydrates, proteins, and fats are digested in the intestine, where they are broken down into their basic units: Carbohydrates into sugars. Proteins into amino acids. Fats into fatty acids and glycerol.

Detailed explanation-3: -Our body relies on three major types of food, carbohydrates or carbs, fats, and proteins. During digestion, these three types of food are broken down by the same type of chemical reaction, called hydrolysis.

Detailed explanation-4: -Both simple and complex carbohydrates break down into glucose (aka blood sugar). A simple carb is one that’s comprised of one or two sugar molecules, while a complex carb contains three or more sugar molecules. Fiber, on the other hand, is found in healthy carbs, but isn’t digested or broken down.

Detailed explanation-5: -The majority of carbohydrate digestion occurs in the small intestine. The main enzyme is pancreatic amylase, which yields disaccharides from starch by digesting the alpha 1-4 glycosidic bonds. The disaccharides produced (maltose, maltotriose, and -dextrins) are all converted to glucose by brush border enzymes.