3.3 Digestion & Absorption Flashcards
What is digestion?
Hydrolysis of larger molecules into smaller ones
What type of digestion is the teeth chewing food?
Physical
What does physical breakdown increase?
Surface area for enzymes to act on
What is chemical breakdwon?
Enzymes hydrolysis
What does hydrolysis require?
Water
What bonds are broken by lipases?
Ester
What are triglycerides broken down into?
Monoglycerides, glycerol and fatty acids
What are lipids due to bile salts?
Micelles
Which enzymes breaks down polypeptides?
Proteases
Which enzymes breaks down dipeptides?
Peptidases
What do endopeptidases do?
Hydrolyse peptide bonds in central regions of proteins
What is the name of the enzyme that hydrolyses peptide bonds in central regions of proteins?
Endopeptidases
What do exopeptidases do?
Hydrolyse peptide bonds of terminal amino acids
What is the name of the enzyme that hydrolyses peptide bonds of terminal amino acids?
Exopeptidases
What do membrane- bound dipeptidases do?
Hydrolyse peptide bonds in dipeptides
What is the name of the enzyme that hydrolyses peptide bonds in dipeptides?
Membrane-bound dipeptidases