Examlex
Define the following terms and explain their importance to the study of economics.
a. marginal cost
b. marginal revenue
c. short-run equilibrium
d. supply curve of the firm
e. economic profit
Equilibrium Potential
This term refers to the electrical potential difference that precisely balances an ionic concentration gradient across a membrane, resulting in no net ion flow.
Hyperpolarization
An increase in a cell's membrane potential, making it more negative inside compared to the outside and further from the threshold that causes action potentials.
Absolute Refractory Period
A period immediately following the stimulation during which a nerve or muscle is unresponsive to further stimulation.
Second Messenger System
A method of cellular signaling where the signal from a first messenger is transferred to a secondary molecule inside the cell to elicit a physiological change.
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