Which of the following hormone stimulates the gastric secretion
Enterogastrone
Gastrin
CCK-PZ
Villikinin
Epithelial cells ofthe intestine involved in food absorption have on their surface
pinocytic vesicles
phagocytic vesicles
zymogen granules
micro-villi
Secretin and cholecystokinin are digestive hormones. They are secreted in
oesophagus
ileum
duodenum
pyloric stomach
The true stomach in ruminants where most of digestion takes place is
rumen
omasum
reticulum
abomasum
Pepsin is inactivated at pH
below 3
below 2
above 5
above 3
C.
above 5
Pepsin is inactivated at pH above 5. Pepsin is a proteolytic or protein splitting enzyme. The pH optimum of pepsin is about 2 and the enzyme, therefore, works well in the acidic gastric juice while it is inactivated in the basic medium.