Human Digestive System - Science Learning 3

Learn Human Digestive System questions with answers. This prep guide includes questions like, what is digestion?, what is mechanical process in digestion?, what is chemical process in digestion?, what is absorption?, what is egestion? and others below.

Human Digestive System Learning 3

Question: What is digestion?

Answer: Digestion is a process in which large indiffusible molecules are broken down into simple, smaller and diffusible molecules.

Question: What is mechanical process in digestion?

Answer: A mechanical process in digestion is a process in which food is broken down into simpler and smaller substances by the means of movement of organs e.g. chewing.

Question: What is chemical process in digestion?

Answer: A chemical process in digestion is a process in which small and simpler particles of food are processed by means of chemicals e.g. acids in stomach and alkalis in small intestine.

Question: What is absorption?

Answer: Absorption is a process of diffusion of small, diffusible molecules through the walls of digestive tract into the blood stream.

Question: What is egestion?

Answer: Egestion is generally removal of waste from the body. In human body, egestion refers to the removal of faeces from the digestive tract.