The figure below shows different stages of action potential: What is represented by C?
Correct answer: C. Repolarization
- A. Depolarization
- B. Resting membrane potential
- C. Repolarization
- D. Hyperpolarization
Explanation
This phase of an action potential involves the return of the membrane potential to its resting state after depolarization. It is often characterized by the efflux of positively charged ions, typically potassium (K+), out of the neuron. And that phase in the figure is C.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Coordination and Control questions
In an action potential, the permeability of sodium ions in the neuron increases due to:
In the following diagram of action potential in a neuron, '2' depicts:
Which of the following will restore original ion gradients and RMP after hyperpolarization in neurons?
Which of the following diagram best shows the resting membrane potential?
Which ion is involved in the release of Acetylcholine from the pre-synaptic filter into extracellular fluid?
After the depolarization of postsynaptic neurolemma, neurotransmitters are mostly: