Examlex
How did the presidency become more dependent on the public during Andrew Jackson's era?
Acidic Chyme
The partially digested, acidic food that passes from the stomach to the small intestine.
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.
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