Question

Channelopathies are a group of diseases characterized by O Inherited mutations in ion channels O Autoimmune disease that destroys nerve cells O Loss of channels in myelin sheaths leading to a block in nerve conduction O a wider than normal synaptic cleft Which of the following statements is false? O Voltage, stretch, and temperature are all factors that regulate the opening of ions channels O It is not possible to predict the precise moment that a channel will be open or closed. only the probability that opening or closing will occur O The whole cell current (macroscopic current) can be calculated by summing the many microscopic single channel currents O

Changing the concentration gradient of an ion will cause an ion channel to open An ion channel that is composed of several different proteins that assemble together in the membrane to form a pore is called a O heteromeric multimer O heteromeric monomer O monomeric polypeptide O monomeric multimer A patch clamp device, such as an inside-out or an outside-out patch clamp, is typically used to: O infuse different kinds of ions into an axon O promote red dye molecules to diffuse from the inside of the cell to the outside of the cell. O cause cells to burst by creating openings in the cell membrane O study the properties of a single lon channel

Answer 1

Step-by-step explanation:

The false statement is: "Changing the concentration gradient of an ion will cause an ion channel to open."

In reality, changing the concentration gradient of an ion does not directly cause an ion channel to open. Ion channels are typically gated by specific mechanisms such as voltage, stretch, or ligand binding. The concentration gradient of ions affects the movement of ions through the open channels, but it does not directly regulate the opening or closing of the channels themselves.