Which one of the following sets of ions is necessary for the transmission of nerve impulses?
Correct answer: A. Na+ and K+
- A. Na+ and K+
- B. Ca2+ and Na+
- C. Ca2+ and K+
- D. Na+ and Mg2+
Explanation
Sodium (Na+) and potassium (K+) ions are essential for nerve impulse conduction. Their movement across the neuron's membrane generates action potentials, and the sodium-potassium pump restores the resting ionic balance.
Last updated
About Coordination and Control
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.
Practise Coordination and Control
1,687 free Coordination and Control MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A 30 years old male complains of being over weight, sluggish in nature, hair loss, dry skin and intolerance of cold, he is suffering from:
A band of axons between two hemispheres is termed as:
A branch form the body of a neuron, which usually carries information away from its cell body, is:
A branch from the body of a neuron, which usually receives information:
A bundle of axons or dendrites bounded by connective tissue inside the CNS is: