Examlex
An anxiety disorder characterized by prolonged vague, but intense, fears that are not attached to any particular object or circumstance is ________ disorder.
Parietal Cells
Cells in the stomach lining that secrete hydrochloric acid and intrinsic factor, essential for digestion and B12 absorption respectively.
Active Transport
The movement of molecules across a cell membrane requiring energy input, typically against their concentration gradient.
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.
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