More on Enzymes and Digestion

Question 1

What are enzymes used in the digestive system produced by ?

Answer 1

specialised cells in glands and in the gut lining.

Different enzymes catalyse the breakdown of different food molecules

Question 2

Gullet

Answer 2

Oesophagus

Question 3

Salivary Glands

Answer 3

These produce amylase enzyme in the saliva

Question 4

Stomach

Answer 4

It pummels the food with its muscular walls
It produces the protease enzyme, pepsin
It produced HCL for two reasons

• To kill bacteria
• To give the right pH for the protease enzyme to work ( pH 2 - acidic )

Question 5

Liver

Answer 5

where bile is produced. Bile neutralises stomach acid and emulsifies fat

Question 6

Pancreas

Answer 6

Produces protease, amylase and lipase enzymes, it releases these into small intestine

Question 7

Gall bladder

Answer 7

where bile is stored before its released into small intestine

Question 8

Large intestine

Answer 8

Where excess water is absorbed from food

Question 9

Small intestine

Answer 9

Produces protease, amylase and lipase to complete digestion. Also where digested food is absorbed out of the digestive system into the blood

Question 10

Rectum

Answer 10

The rectum is where faeces are stored until they leave the digestive system through the anus as a bowel movement.

Question 11

Check page 28 for positions

Answer 11

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