Which of the ions are most abundant on the inside and outside of the neuron at its resting potential?
Correct answer: A. Potassium; sodium
- A. Potassium; sodium
- B. Sodium; potassium
- C. Calcium; phosphate
- D. Sulphate; potassium
Explanation
The concentration of potassium ions Is 30 times greater in the fluid Inside the cell than outside and the concentration of sodium ions is nearly 10 times greater in the fluid outside the cell than inside. So, the abundant elements inside and outside will be potassium and sodium respectively.
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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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