digestion quick

Question 1

Describe how starch is broken down

Answer 1

Amylase is produced in the salivary glands + pancreas
Hydrolyses starch into maltose
Maltase hydrolyses maltose by breaking glycosidic bonds into alpha glucose

Question 2

Describe complete breakdown of lipids

Answer 2

Bile salts are produced in liver and released into small intestine
They emulsify lipids which increases the SA
Lipase catalyses the hydrolysis of ester bonds in lipids into a monoglyceride and fatty acids

Question 3

Describe complete breakdown of protein

Answer 3

Proteins are hydrolysed into amino acids by peptidases
Endo peptideases hydrolyse peptide bonds within a protein + increase SA for exo to work on
Exopeptidases hydrolyse peptide bonds at the end of proteins