When a cell is in its resting state, what status are the charges inside and outside the cell?

Prepare for the Public Health CDC Volume 1 Test with comprehensive questions and detailed explanations. Enhance your knowledge with multiple-choice quizzes and ensure you're ready for the test day!

In a cell's resting state, the correct status of the charges is that there is a higher concentration of positive ions outside the cell and a more negative charge inside the cell. This condition is primarily due to the distribution of sodium (Na+) and potassium (K+) ions. The sodium-potassium pump actively transports sodium out of the cell while bringing potassium in, resulting in a net negative charge inside the cell. This difference in charge creates a resting membrane potential, which is essential for the function of neurons and muscle cells.

This charge imbalance is crucial for the generation of action potentials and signal transmission in excitable tissues. The correct option captures this fundamental concept of cellular function and electrical properties, reinforcing the importance of the resting state in physiological processes.

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