BIO 240 FALL 2019 / Exam 2 Resources

Started on Tuesday, October 15, 2019, 4:55 PM State Finished Completed on Tuesday, October 15, 2019, 5:21 PM Time taken 25 mins 20 secs Grade 127.00 out of 150.00 (85%) The graph above represents a results in the . Specifically, this shows an of the membrane. which Would this type of potential weaken with distance? Select "YES" for each channel below that when stimulated to open would DIRECTLY result in the specific graph above. You may indicate "YES" for one, more than one, or none of the channels listed. Cation Ligand-Gated Channel Potassium Ligand-Gated Cha Chloride Ligand-Gated Chann Calcium Ligand-Gated Channe Sodium Voltage-Gated Chann Potassium Voltage-Gated Cha Calcium Voltage-Gated Channel Your answer is partially correct. You have correctly selected 6. The correct answer is: The graph above represents a [Graded Potential]. Specifically, this shows an [IPSP] which results in the [hyperpolarization] of the membrane. Would this type of potential weaken with distance? [YES] Select "YES" for each channel below that when stimulated to open would DIRECTLY result in the specific graph above. You may indicate "YES" for one, more than one, or none of the channels listed. Cation Ligand-Gated Channel [NO] Potassium Ligand-Gated Channel [YES] Chloride Ligand-Gated Channel [YES] Calcium Ligand-Gated Channel [NO] Sodium Voltage-Gated Channel [NO] Potassium Voltage-Gated Channel [NO] Calcium Voltage-Gated Channel [NO] Drag and drop the labels in the appropriate location on the graph. Your answer is correct. Answer the following questions in reference to the above graph showing the voltage changes at the neuron membrane. The expected value of point "A" on the graph would be . The expected value of point "B" on the graph would be . The area on the graph contained within the dashed box outline represents the . The questions below refer to this specific phase. During this phase, the sodium . This results in of a(n) and in the through this specific channel. Your answer is correct. The correct answer is: are through this specific channel. . This results in Answer the following questions in reference to the above graph showing the voltage changes at the neuron membrane. The expected value of point "A" on the graph would be [‑70 mV]. The expected value of point "B" on the graph would be [‑55 mV]. The area on the graph contained within the dashed box outline represents the [depolarization phase] of a(n) [action potential]. The questions below refer to this specific phase. During this phase, the sodium [voltage‑gated channels ] are [open / opening] and in the [activation state]. This results in [the net influx of sodium into the neuron] through this specific channel. During this phase the potassium [voltage‑gated channels ] are [closed / closing]. This results in [no net movement of potassium into or out of the