digestive system

Question 1

name a problem caused by obesity

Answer 1

high blood pressure
heart disease

Question 2

name one issue caused by starvation or a defiency

Answer 2

slow growth in children
irregular periods in women
lack of vitamin C can cause scurvy
issues with skin, joins and gums

Question 3

names the eight bits of the alimentary canal

Answer 3

mouth
oesophagus
stomach
liver
pancreas
small intestine
large intestine
rectum

Question 4

(digestion)
what does the mouth do

Answer 4

the teeth chew and mix food with saliva which breaks it down

Question 5

what does saliva contain?

Answer 5

enzymes (particularly amylase)

Question 6

(digestion)
what does the oesophagus do

Answer 6

it links the mouth to the stomach

Question 7

(digestion)
what does the stomach do?

Answer 7

1) it mixes the food with enzymes which helps digest the proteins and stomach muscles help the stomach churn up the food

2) hydrochloric acid is present to kill harmful bacteria

Question 8

(digestion)
what does the liver do?

Answer 8

the liver makes bile which breaks down fat

Question 9

(digestion)
what happens in the pancreas?

Answer 9

makes 3 enzymes
1( PROTease digests PROTein
2) CARBOHYDRAse digests CARBOHYDRAtes
3) LIPase digests LIPids

Question 10

(digestion)
what does the small intestine do?

Answer 10

produces more enzymes to further digest proteins, carbs and fats
food is also absorbed through the gut wall into the blood to take around body when needed

Question 11

(digestion)
what does the large intestine do?

Answer 11

it absorbs water