Cell Transport

Front

What is Exocytosis?

Back

Exocytosis is the process by which cells move large particles out of the cell by vesicles that fuse with the cell membrane, releasing their contents outside.

Front

What is Diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is Facilitated Diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane from high to low concentration.

Front

What is Active Transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy (ATP).

Front

What is the Cell Membrane?

Back

The cell membrane is a biological membrane that separates and protects the interior of all cells from the outside environment, regulating what enters and exits the cell.

Front

What is Osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the Sodium-Potassium Pump?

Back

The sodium-potassium pump is a type of active transport that moves sodium ions out of the cell and potassium ions into the cell, crucial for maintaining cellular function.

Front

What is Isotonic Solution?

Back

An isotonic solution is one where the concentration of solutes is the same inside and outside the cell, resulting in no net movement of water.

Front

What is Hypertonic Solution?

Back

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

Front

What is Hypotonic Solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to move into the cell and potentially leading to cell swelling or bursting.