In both amoeba and mice, the process of digesting food involves breaking down complex molecules into simpler forms that can be absorbed and utilized by the organism. In amoeba, food particles are engulfed through a process called phagocytosis and are enclosed within a food vacuole. Digestive enzymes are then secreted into the vacuole to break down the food into smaller molecules, which are absorbed across the amoeba's cell membrane. In mice, digestion begins in the mouth where food is mechanically broken down by chewing and mixed with saliva containing enzymes. It then enters the stomach where gastric juices containing hydrochloric acid and enzymes are secreted to further break down the food. Nutrients are absorbed in the small intestine and waste is eliminated through the large intestine.
