Alimentary canal

Question 1

role of the stomach

Answer 1

• pummels the food with muscular walls
• produces protease enzyme, pepsin
• produces hydro laurie acid to kill bacteria and to give the optimum pH level for pepsin to work. (pH2)

Question 2

role of mouth

Answer 2

salivary glands produce amylase enzyme in saliva

teeth break down food by chewing and churning

Question 3

oesophagus

Answer 3

muscular tube, connects mouth and stomach. wave like contractions push the food down called peristalsis

Question 4

liver

Answer 4

where bile is produced

Question 5

function of bile

Answer 5

file neutralises the acid mixed conditions.The enzymes in the small intestine work best in these alkaline conditions.

emulsifies fats- ( breaks fat into tiny droplets) bigger surface area affect the enzyme lipase to work on

Question 6

where is bile stored

Answer 6

gall bladder

Question 7

what does the pancreas do

Answer 7

produces protease, analyse and lipase enzyme - releases these into the small intestine.

Question 8

role of large intestine

Answer 8

where excess water is absorbed from the food being digested

Question 9

what does the small intestine do

Answer 9

produce protease, amylase and lipase enzymes to complete digestion

where nutrients are absorbed out of the alimentary canal into the body

first part- duodenum
second part- ilium

Question 10

role of rectum

Answer 10

last part of the large intestine

where the fences (mainly made up of indigestible food) are stored before they exit out of the anus.