How many sites of digestion are present in the digestive system of man?

Explanation

This is the correct answer. In humans, digestion occurs at three main sites: a. Mouth: Digestion begins in the mouth with the mechanical and chemical breakdown of food by chewing and the action of saliva containing enzymes like amylase. b. Stomach: The stomach continues the digestive process by mixing food with gastric juices, primarily containing hydrochloric acid and pepsin, which break down proteins. c. Small Intestine: The majority of digestion and nutrient absorption occur in the small intestine. Enzymes from the pancreas and bile from the liver help break down and further digest carbohydrates, fats, and proteins.