What Governs the Movement of Ions Through Channels in the Plasma

question 10

Multiple Choice

What governs the movement of ions through channels in the plasma membrane?

• A) Ions move through such channels passively, driven by concentration gradients and by the electrical potential across the membrane.
• B) Ions move through channels actively, driven by the energy provided by ATP.
• C) Ions move through channels passively, driven only by the concentration gradient.
• D) Ions move through channels passively, driven only by the electrical potential across the membrane.
• E) Ions move through channels actively, driven by the energy provided by GTP.

---

Definitions:

Supply Curve

The Supply Curve is a graphical representation showing the relationship between the price of a good or service and the quantity of that good or service that suppliers are willing and able to provide, typically upward sloping.

Change In Supply

A shift in the quantity of a good that producers are willing and able to sell at various prices, due to factors other than the price of the good itself.

Change In Quantity Supplied

The difference in the amount of a product that producers are willing and able to sell due to a change in price.

Law Of Supply

The claim that, other things being equal, the quantity supplied of a good rises when the price of the good rises.