The Presence of Food in the Stomach Triggers the Release

question 13

Multiple Choice

The presence of food in the stomach triggers the release of a hormone that stimulates contraction of the pyloric sphincter. Specifically, these events involve release of

• A) secretin in the cephalic phase of digestion.
• B) gastrin in the gastric phase of digestion.
• C) CCK in the intestinal phase of digestion.
• D) lipase in the intestinal phase of digestion.
• E) chyle in the secretory phase of digestion

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Definitions:

Compound

A substance made up of atoms of two or more different elements chemically bonded together.

KMnO4

Potassium permanganate, a chemical compound used as an oxidizing agent in various chemical reactions.

Organic Product

A compound or substance that has been synthesized from organic (carbon-containing) materials.

Regio-

A prefix in chemistry indicating the region or position in a molecule where a certain reaction takes place or where a particular substituent is located.