Examlex
The maximum number of people Earth can hold without causing prohibitive environmental degradation is called ________.
Membrane Potential
The electrical potential difference across a cell's plasma membrane, crucial for the conduction of impulses in muscle and nerve cells.
Channels
Structures that form pores in the membranes of cells and organelles, allowing the selective passage of ions or molecules across the membrane and thus contributing to vital physiological processes.
Calcium
A chemical element essential for living organisms, including bone formation, blood clotting, and muscle function.
Potassium
A chemical element with symbol K, essential for various bodily functions including nerve transmission and muscle contraction.
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