You Are a Graduate Student Conducting an Experiment in Which

question 22

Multiple Choice

You are a graduate student conducting an experiment in which you are using an intracellular electrode to record the membrane potential of an optic neuron when exposed to a very brief (0.1 second) flash of light. To your surprise, the optic neuron's membrane potential is recording at -90 mV and there is a longer-than-expected delay between the flash of light and depolarization of the neuron. You report your findings to the lab PI, who responds,

• A) "The organism likely has a mutation which causes their neurons to have lower resting potentials."
• B) "You likely placed the electrode in an adjacent glial cell."
• C) "The organism has improper myelination, resulting in a slower-than-normal response to light."
• D) "Glial cells can cause neurons to have lower resting potentials; remove the glial cells and try again."
• E) "You placed the electrode in the neuron's cell body instead of its axon."

---

Definitions:

Price of Sugar

The cost at which sugar is sold in a market, influenced by factors such as supply, demand, production costs, and market conditions.

Quantity Demanded

Represents the total amount of a good or service that consumers are willing and able to purchase at a given price.

Relatively Inelastic

Describes a situation where the demand or supply of a product is not significantly changed by alterations in price.

Total Revenue

The sum total of revenue a business earns from its sales activities and service provisions during a particular period.