Latoya is working in the lab to generate an EPSP, which is a ______.
A) graded depolarization
B) graded hyperpolarization
C) reflex
D) specialized hormone

Question

Quizplus · Accepted Answer

An EPSP (Excitatory Postsynaptic Potential) is a graded depolarization of the postsynaptic membrane. It is caused by the influx of positively charged ions, such as Na+, into the cell. This makes it easier for the neuron to fire an action potential. Therefore, A is the correct answer. B is incorrect because a graded hyperpolarization would be an IPSP (Inhibitory Postsynaptic Potential), which makes it harder for the neuron to fire an action potential. C is incorrect because a reflex is a fast, automatic response to a stimulus that does not involve conscious thought. D is incorrect because a specialized hormone does not relate to the generation of an EPSP.

Latoya Is Working in the Lab to Generate an EPSP