Gr.11 Bio Enzymes & Hormones (Digestive)

Protease

breaks proteins into peptide

Peptidases

breaks peptides into amino acids

Lactase

breaks lactose into galactose and glucose

Lipase

breaks fats into glycerol and fatty acids

Amylase

breaks starch chains into smaller sugar molecules

Enzyme

protein catalysts that speed up chemical reactions within the body without being used up

Hormone

chemical messenger that coordinates different functions in the body by carrying messages through the blood

Gastrin

releases HCl and pepsinogen into the stomach

Secretin

Stimulates pancreatic and bile secretions. Neutralizes HCl to pH of 9. Deactivates pepsin and prevents food from exiting the stomach undigested.

Cholecystokinin (CCK)

signals pancreas to secrete substances to control pH