human digestive system

Question 1

what is the purpose of digestion

Answer 1

to break down food molecules so they can absorb into cells

Question 2

what is produced to help chew food

Answer 2

saliva

Question 3

what does salivary amalyse do

Answer 3

help break down carbohydrates

Question 4

where does food go after being consumed

Answer 4

down the esophagus into the stomach

Question 5

what is the first thing the stomach does

Answer 5

contracts it’s muscular walls to push food around

Question 6

what is the second thing the stomach does

Answer 6

produces pepsin wich breaks down proteins

Question 7

what is the third thing the stomach does

Answer 7

produces hydrochloric acid to kill bacteria and provide the right environment for pepsin to work

Question 8

where does food go after the stomach

Answer 8

to the small intestine

Question 9

what does the small intestine do

Answer 9

produces protease, amalyse and lipase enzymes to complete digestion
absorbs digested food into the bloodstream

Question 10

how is the small intestine specialised

Answer 10

has microvilli to increase surface area and absorb food
food is diffused so glucose can be used in respiration
very good blood supply

Question 11

what does the pancreas do

Answer 11

produce enzymes like protease, amalyse, and lipase then releases them into the small intestine through pancreatic juices

Question 12

where is bile made

Answer 12

the liver

Question 13

where is bile stored

Answer 13

gall bladder

Question 14

what does the gall bladder do

Answer 14

releases bile

emulsifies fats into droplets to give bigger surface area for digestion

Question 15

what does bile do

Answer 15

neutralises acid from the stomach

Question 16

what is next in the digestive system

Answer 16

the large intestine

Question 17

what happens in the large intestine

Answer 17

excess water is absorbed leaving behind feaces

Question 18

what is a catalyst

Answer 18

substance which increases the speed of a reaction with being changed or used up in the reaction

Question 19

what are enzymes made up of

Answer 19

proteins made up of amino acids

Question 20

what two factors effect enzymes

Answer 20

temperature and ph

Question 21

what happens to enzymes when the temperature is too high

Answer 21

the shape of the active site changes so the substrate does not fit anymore, the enzyme becomes denatured

Question 22

what happens to enzymes when the ph is too high or low

Answer 22

the shape of the active site changes and it becomes denatured

Question 23

what does amalyse break down

Answer 23

starch into maltose

Question 24

where is amalyse made

Answer 24

pancreas
small intestine
salivary glands

Question 25

what does protease break down

Answer 25

proteins into amino acids

Question 26

where is protease made

Answer 26

the stomach (pepsin)
pancreas 
small intestine

Question 27

what does lipase break down

Answer 27

lipids/fats into glycerol and fatty acids

Question 28

where are lipids made

Answer 28

pancreas

small intestine