Digestive System

Question 1

Mouth

Answer 1

Voluntary control of eating and swallowing. Mechanical digestion of food by chewing and mixing with saliva which contains lubricants and enzymes that starts starch digestion

Question 2

Espohagus

Answer 2

Movement of food by peristalsis from the mouth to he stomach

Question 3

Stomach

Answer 3

Churning and mixing with secreted water and acid which kills foreign bacteria and other pathogens in the food, plus initial stages of protein digestion

Question 4

Small intestine

Answer 4

Final stages of lipids, carbohydrates, proteins and nucleic acids, neutralising stomach acids plus absorption of nutrients

Question 5

Pancras

Answer 5

Secretion of lipase, amylase and protease

Question 6

Liver

Answer 6

Secretion of surfactants in bike to break up lipid droplets

Question 7

Gall bladdler

Answer 7

Gall bladder storage a regulated release of bike

Question 8

Large intestine

Answer 8

Re absorption of water, further digestion especially of carbohydrates by symbiotic bacrtia, plus formation and storage of feces