Cell Membrane Transport Matching

Gated channels

Allow ions to pass though. The protein channels have gates that can close as needed to block certain ions. The ions transport in the method are sodium, potassium, calcium, and chloride ions.

Hypotonic solutions #1

Aqueous solutions having a low concentration of solute. The prefix means little or low.

Osmosis pressure

Are determined by the solute concentration. All of this result from aqueous solutions.

Hypertonic solutions #2

In this solution the solute concentration is greater than the water concentration. When a cell is placed in this solution, the cell loses water in an effort to equalize osmotic pressure.

Hypotonic solutions #2

In this solution the water concentration is greater than the solute concentration. When a cell is placed in this solution, the water flows into the cell.

Vesicles

Involves the movement of large amounts of solids and liquids

Osmosis

Is the diffusion of water. This movement of water from a region of greater concentration to a region of lesser concentration. No energy is required.

Selective permeability

Meaning that some things are allowed in, but not others

Homeostasis

Means "steady state" or balance within the cell and is necessary for cell survival

Isotonic solution #2

When a cell is placed in this solution, there is no region of greater or lesser concentrations of water, so there is no flow of water

facilitated diffusion

When a molecules is transported from the outside of the cell through the inside of a protein embedded in the cell membrane. The protein opens allowing the molecule to go inside the cell.

Membrane pumps

Carrier proteins serve as "pumps" to move substances from regions of lesser concentration to regions of greater concentration.

Isotonic solution #1

Have equal amounts of both solute and solvent

Passive transport #2

Molecules move from a region of greater concentration to a region of lesser concentration.

Active transport #2

Molecules move from a region of lesser concentration to region of greater concentration

Endocytosis

Movement of large volumes of solids of liquids into the cell

Exocytosis

Movement of large volumes out of the cell

Passive transport #1

Movement of molecules with out the use of energy.

Active transport #1

Movement of molecules with the use of energy. The form of energy used is ATP.

Phagocytosis

Movement of solids into the cell. Phagocytes are cells specialized to function in this.

Concentration gradient

The difference in the concentration of molecules across a distance

sodium-potassium pump

The most important active transport pump in the body and this pump constantly moves sodium and potassium ions against the concentration gradient. This pump is necessary for proper muscle contraction and nerve conduction. It requires energy in the form of ATP. This pump uses 1/3 of all body energy.

Hypertonic solutions #1

The prefix refers to the solute concentration in relation to the water concentration and it means large amounts

Diffusion

The simplest type of passive transport and it is the movement of molecules from a region of greater concentration to a region of lesser concentration. Energy is not required.

Pinocytosis

movement of liquids into the cell