Question

part b
the cytoplasm of a neuron contains many negatively charged proteins, which give the cell a slightly negative charge at rest. what do you think happens to this charge when the neuron is stimulated?

part c
is your prediction supported by the membrane potential chart? explain your answer.

Explanation:

The problem is about the cytoplasm of a neuron and its charge during stimulation, which falls under Biology (a subfield of Natural Science). When a neuron is stimulated, the resting membrane potential (negative inside) changes. Voltage - gated ion channels open, allowing positive ions (like Na⁺) to rush into the cell. This causes depolarization, where the inside of the neuron becomes less negative and can even become positive for a short time (action potential generation). The negatively charged proteins in the cytoplasm are relatively static, but the influx of positive ions changes the overall charge balance.

Answer:

When a neuron is stimulated, the cytoplasm's charge (membrane potential) changes from negative (resting state) to less negative and then positive (during action potential) due to ion (e.g., Na⁺) influx through voltage - gated channels, while the negatively charged proteins remain, but the ion movement alters the overall charge.