The resting potential membrane is determined by which of the following?
Correct answer: A. Potassium ion gradient
- A. Potassium ion gradient
- B. Sodium ion gradient
- C. Bicarbonate ion gradient
- D. None of these
Explanation
The resting potential membrane is determined by the potassium ion gradient. The inside of a cell has a higher concentration of potassium ions than the outside, and this difference in concentration creates a potential difference across the membrane. This potential difference is called the resting membrane potential, and it is typically around -70 millivolts.
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Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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