01 DEFINITION Process of digestion Food has several components like carbohydrates, proteins, vitamins, minerals and fats. The components of food are digested in the stomach with the help of digestive juices. The digestive juices act on the food in the stomach and break into simpler compounds. The digestive juices are acidic. 02 DEFINITION Ingestion Ingestion is the process of taking food, drink, medicine etc., into the body by swallowing it or absorbing it. 03 DEFINITION Tongue Tongue is a muscular organ. It is freely movable at the front end. The tongue is attached to the floor of the mouth by a fold called the frenulum linguae. An inverted v-shaped furrow, termed the sulcus terminalis is present across the tongue. The tongue has many papillae on its surface. These papillae contain taste buds and are of 4 types: Vallate papillae- They are large in size and are 8 to 10 in number. They l...
Class 11 science ,biology solution ,