In a Normal Cellular Protein,where Would You Expect to Find

question 67

Multiple Choice

In a normal cellular protein,where would you expect to find a hydrophilic amino acid such as asparagine?

• A)in the interior of the folded protein,away from water
• B)on the exterior surface of the protein,interacting with water
• C)in the transmembrane portion,interacting with lipid fatty acid chains
• D)on the exterior surface of the protein,interacting with water,or in a transmembrane portion,interacting with lipid fatty acid chains

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Definitions:

Bicarbonate Ions

Chemical ions (HCO3-) that act as a buffer in blood and help maintain the body's pH balance.

Pepsinogen

Proenzyme formed and secreted by the chief cells of the gastric mucosa; the acidity of the gastric juice and pepsin itself converts pepsinogen into pepsin.

Zymogen Granules

Intracellular storage granules found in the pancreas and other glands, containing inactive enzyme precursors that can be activated when needed.

Salivary Amylase

An enzyme found in saliva that starts the process of breaking down starches into sugars during digestion.