Digestion Flashcards
What are the two types of proteases?
Endopeptidase, Exopeptidase
Where to endopeptidases cut?
In the middle of the polypeptide
Where do exopeptidases cut?
At the terminal ends
What is peristalsis?
Rhythmic contractions of the gut
What are the ridges in the stomach called?
Rugae
What is the function of rugae?
Help with the mechanical breakdown of food
Where is the cardiac sphincter found?
At the top of the stomach
Where is the pyloric sphincter found?
At the bottom of the sphincter
What do goblect cells do?
Secrete mucus to protect the stomach walls from enzymes and acid
What released HCl?
The oxyntic cells
What does HCl do?
Kills most bacteria
Provided the optimum pH for enzymes
Activates pepsinogen
What is the function of rennin?
Curdles milk
What is the pH of the stomach?
1-2
Where is pepsin found?
In the gastric juice
Is pepsin an endo or exo peptidase?
An endopeptidase