Cellular Transport

Front

What is cellular transport?

Back

Cellular transport refers to the movement of substances across the cell membrane, which can occur through various mechanisms such as diffusion, osmosis, and active transport.

Front

What does hypotonic mean?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, leading to water moving into the cell, causing it to swell.

Front

What does hypertonic mean?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, causing water to move out of the cell, leading to cell shrinkage.

Front

What is isotonic?

Back

An isotonic solution has equal concentrations of solutes on both sides of the membrane, resulting in no net movement of water.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a passive transport process where molecules move across the cell membrane through protein channels without the use of energy.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to move molecules from low to high concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What does permeable mean?

Back

Permeable means that a membrane allows certain substances to pass through it.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells engulf large molecules or particles, bringing them into the cell using energy.

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel large molecules or particles from the cell, using energy to fuse vesicles with the cell membrane.