Exam 3: The Plasma Membrane and Membrane Potential

Opening a potassium channel during the resting potential would cause potassium ions to move along their concentration gradient but against the electrical gradient.

Which pairing has the most closely related items?

Which of the following solutions has a lower osmotic pressure than a human cell's cytosol?

Use the figure above to answer the corresponding questions. -Describe the transport of glucose from the intestinal lumen into the intestinal cells and mention how Na⁺-K⁺ pumps make this process possible.

____________________ refers to a separation of opposite charges across the membrane.

A carrier molecule moves from the ECF side to cytosol side of the membrane as it transports material into the cell.

The following questions refer to comparative concentrations, permeabilities, and potentials under various circumstances.Indicate the relationship between the two items listed in each situation using the following answer code. a.A is greater than B b.B is greater than A c.A and B are equal -a.concentration of Na⁺ in the ECF B.concentration of Na⁺ in the ICF

Pinocytosis refers to the process of a cell engulfing ECF, and this process increases the cell's surface area.

Movement of a substance up a gradient can occur through

Secondary active transport in which two substances pass through the membrane in the same direction is called ____________________.