This Tunic of the GI Tract Is Important for Secretion

question 20

Multiple Choice

This tunic of the GI tract is important for secretion of enzymes and absorption of nutrients.

• A) muscularis externa
• B) serosa
• C) mucosa
• D) submucosa

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Definitions:

Acidic

Having a pH less than 7, indicating a higher concentration of hydrogen ions in a solution, which gives it acidic properties.

Basic

In chemistry, basic describes substances with a pH greater than 7, possessing the ability to accept protons or donate electrons or hydroxide ions.

Metabolic Reactions

Chemical reactions in living organisms that are necessary for maintaining life, involving anabolism and catabolism.

Chemical Compounds

Chemical compounds are substances consisting of two or more different chemically bonded elements, with a fixed ratio determining the composition.