Organisation - Enzyme and Digestion 50-51 Flashcards
what do digestive enzymes break down and why
2 points
1) big molecules
2) they’re too big to pass through the walls of the digestive system to enzymes break these molecules into smaller ones
what are some big molecules
3 points
1) starch
2) proteins
3) fats
what are some smaller molecules
4 points
1) sugars
2) amino acids
3) glycerol
4) fatty acids
what can the smaller molecules do that the bigger ones can’t
2 points
1) they are smaller and soluble so can easily pass through the walls of the digestive system
2) allowing them to be absorbed into the bloodstream
what does carbohydrases do
they convert carbohydrates into simple sugars
what is amylase an example of
an example of a carbohydrase
where is amylase made
3 points
1) the salivary glands
2) the pancreas
3) the small intestine
what is starch
a carbohydrate
what does amylase break down and what does that make
2 points
1) it breaks down starch
2) which makes maltose and other sugars
what do proteases break down and what does this break down into
2 points
1) it breaks down proteins
2) into amino acids
where is protease made
3 points
1) the stomach (it’s called pepsin there)
2) the pancreas
3) the small intestine
what are lipids
they are fats and oils
what does lipase break down and what does this break down into
2 points
1) it breaks down lipids
2) into glycerol and fatty acids
where are lipases made
2 points
1) the pancreas
2) the small intestine
what can the products of digestion be used for
2 points
1) to make new carbohydrates, proteins and lipids
2) some of the glucose that’s made is used in respiration