Enzymes in digestion

Question 1

how is starch digested?

Answer 1

The starch is broken down by the amylase enzyme into maltose so that they can pass through the walls of the digestive system

Question 2

where is the amylase made?

Answer 2

The salivary glands, the pancreas and the small intestine

Question 3

how are proteins digested?

Answer 3

The proteins are broken down by the protease enzyme into amino acids so that they can pass through the walls of the digestive system

Question 4

where is the protease enzyme made?

Answer 4

The stomach (pepsin),the pancreas and the small intestine

Question 5

how are lipids digested?

Answer 5

The lipids are broken down by the lipase enzyme into glycerol and fatty acids, so that they can pass through the walls of the digestive system

Question 6

where is the lipase enzyme made?

Answer 6

The pancreas and small intestine

Question 7

what do the salivary glands produce?

Answer 7

The amylase enzyme for the saliva

Question 8

what does the stomach do?

Answer 8

It pummels the food with its muscular walls, produces the protease enzyme and produces hydrochloric acid to kill bacteria and to give the protease enzyme the pH it needs to work

Question 9

what does the liver do?

Answer 9

It produces bile to neutralise the stomach acid and emulsifies fats

Question 10

what does the gall bladder do?

Answer 10

It stores bile before being released into the small intestine

Question 11

what does the pancreas do?

Answer 11

It produces protease, lipase and amylase and releases them into the small intestine

Question 12

what does the large intestine do?

Answer 12

Absorbs excess water from the food

Question 13

what does the small intestine do?

Answer 13

It produces protease, amylase and lipase enzymes and absorbs the digested food into the blood

Question 14

what are the basic stages of digestion?

Answer 14

1. The teeth, tongue and saliva mash up the food before being swallowed
2. It then goes down the oesophagus to the stomach
3. The stomach churns up the food and mixes it with acid to break it down etc.
4. The liver produces bile to neutralise the stomach acid
5. The gall bladder releases more bile into the small intestine
6. The pancreas produces protease, lipase and amylase and releases it into the small intestine
7. The large intestine absorbs excess water
8. The small intestine produces lipase, protease and amylase and absorbs it into the blood
9. The rectum stores the faeces before toilet time