Question

question 10
hydrolysis refers to:
breaking down a molecule of water to hydrogen and oxygen gas.
using water to split larger compounds into smaller ones.
using water to build larger compounds from smaller ones.
none of the above.
question 11
the intestinal hormone cholecystokinin:
causes the pancreas to increase exocrine secretions high in enzyme content.
opposes the influence of gastrin on gastric parietal cells.
stimulates the contraction of the gallbladder.
does all of the above.
question 12
the hormone that stimulates the gallbladder to release bile is:
enterogastrone.
insulin.
gastrin.
cholecystokinin.

Explanation:

Question 10

Hydrolysis is a chemical process where water is used to break down larger molecules into smaller ones. The first option is about decomposing water, not hydrolysis. The third option describes dehydration synthesis (building larger compounds from smaller with water removal), not hydrolysis. So the correct description is using water to split larger compounds into smaller ones.

Cholecystokinin (CCK) has multiple functions: it increases pancreatic exocrine secretions (high in enzymes), opposes gastrin's effect on gastric parietal cells (reduces gastric acid secretion), and stimulates gallbladder contraction to release bile. So it does all the listed actions.

Cholecystokinin is the hormone that stimulates the gallbladder to contract and release bile. Enterogastrone inhibits gastric secretion, insulin regulates blood sugar, and gastrin stimulates gastric acid secretion. So cholecystokinin is the correct hormone.

Answer:

B. using water to split larger compounds into smaller ones.

Question 11