The movement of substances across a cell membrane without the use of energy by the cell.

The movement of particles from regions of higher density to regions of lower density.

Concentration Gradient

A difference in the concentration of a substance across a distance.

A state that exists when the concentration of a substance is the same throughout a space.

The diffusion of water or another solvent from a more dilute solution (of a solute) to a more concentrated solution (of the solute) through a membrane that is permeable to the solvent.

Describes a solution whose solute concentration is lower than the solute concentration inside a cell.

Describes a solution in which the solute concentration is higher than the solute concentration inside a cell.

Describes a solution whose solute condensation is equal to the solute concentration inside a cell.

In protists, an organelle that accumulates water and then releases it periodically to maintain osmotic pressure.

The pressure that is exerted on the inside of cell walls and that is caused by the movement of water into the cell.

The contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis.

Facilitated Diffusion

The transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.

A protein that transports substances across a cell membrane.

A complex of protein molecules in a cell membrane that form a pore through which ions can pass.

The movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cells to use energy.

Sodium-potassium Pump

A carrier protein that uses ATP to actively transport sodium ions out of a cell and potassium ions into the cell

The process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.

A small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell.

A method of active transport across the cell membrane in which the cell takes in extracellular fluids.

The process by which a cell engulfs large particles or whole cells, either as a defense mechanism, or as a means to obtain food.

A cell that ingests and destroys (digests) foreign matter or microorganisms.

The process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Bio Ch 5 Terms

Biology Chapter 5 Terms

Term	Definition
Passive Transport	The movement of substances across a cell membrane without the use of energy by the cell.
Diffusion	The movement of particles from regions of higher density to regions of lower density.
Concentration Gradient	A difference in the concentration of a substance across a distance.
Equilibrium	A state that exists when the concentration of a substance is the same throughout a space.
Osmosis	The diffusion of water or another solvent from a more dilute solution (of a solute) to a more concentrated solution (of the solute) through a membrane that is permeable to the solvent.
Hypotonic	Describes a solution whose solute concentration is lower than the solute concentration inside a cell.
Hypertonic	Describes a solution in which the solute concentration is higher than the solute concentration inside a cell.
Isotonic	Describes a solution whose solute condensation is equal to the solute concentration inside a cell.
Contractile Vacuole	In protists, an organelle that accumulates water and then releases it periodically to maintain osmotic pressure.
Turgor Pressure	The pressure that is exerted on the inside of cell walls and that is caused by the movement of water into the cell.
Plasmolysis	The contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis.
Cytolysis	The bursting of a cell.
Facilitated Diffusion	The transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.
Carrier Protein	A protein that transports substances across a cell membrane.
Ion Channel	A complex of protein molecules in a cell membrane that form a pore through which ions can pass.
Active Transport	The movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cells to use energy.
Sodium-potassium Pump	A carrier protein that uses ATP to actively transport sodium ions out of a cell and potassium ions into the cell
Endocytosis	The process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
Vesicle	A small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell.
Pinocytosis	A method of active transport across the cell membrane in which the cell takes in extracellular fluids.
Phagocytosis	The process by which a cell engulfs large particles or whole cells, either as a defense mechanism, or as a means to obtain food.
Phagocyte	A cell that ingests and destroys (digests) foreign matter or microorganisms.
Exocytosis	The process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out.

Created by: GarciaC17

Popular Biology sets

Genetics: Monohybrid, Dihybrid, & Non-Mendelian

Unit 2- Requirements of Life

Evidence of Evolution

"Know" box contains:
Time elapsed:
Retries: