Exam 6: Interactions Between Cells and the Extracellular Environment

Movement of large molecules into a cell is called

The primary intracellular cation is

Ions like Ca²⁺ can be second messengers for cell signaling.

Which of the following is able to passively penetrate the plasma membrane?

Active transport proceeds when energy is expended.

The resting membrane potential is closest to the equilibrium potential for

Which regulatory molecule cannot enter its target cell?

The extracellular matrix is made up of collagen,elastin,and a gel-like ground substance.

Osmoreceptors are involved in the regulation of blood volume.

Active transport carriers are also called

A one molar solution would contain 6.02 * 10²³ molecules of solute.

Osmosis and simple diffusion do NOT require the actions of carrier proteins.

Which of the following is NOT a general category of cell signaling molecules?

What type of cell signaling occurs through the extracellular matrix to nearby target cells?

Which of the following is NOT a G-protein?

What determines how a regulatory molecule influences its target cell?

Dialysis uses the process of

Facilitated diffusion is unable to transport molecules against a concentration gradient.