Digestion(complete)

PROCESSES

digestion- large insoluble molecules broken down into small soluble molecules

ingestion- intake of food in the mouth

absorption- digested food molecules pass across the wall of the small intestine in the blood

assimilation- uptake of food milecules by cells of the body whhere they are used.

egestion- passing out of undigested food,faeces, from the anus

DIGESTION SYSTEM

mouth- where food enters; chewing increases surface area

salivary glands- contains amylase, breaks down starch

oesophagus- muscular tube which uses peristalsis to push food to the stomach

stomach- lining produces gastric juice which is made of water and hydrochloric acid

pancreas- produces digestive enzymes

liver- produces bile and secretes it into the small intestine; bile emulsifies fats and   sdfdfneutralises the aicd

gallbladder- stores excess bile

small intestine- where enzymes and bile break down nutrients and proteins, which are then         fdsasdfdsasdf  absorbed into the blood

                       -thin…