Cell Transport

Front

What is cell transport?

Back

Cell transport refers to the movement of substances across the cell membrane, which can occur through passive or active mechanisms.

Front

What are the two main types of cell transport?

Back

Passive transport and active transport.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically along a concentration gradient.

Front

What is active transport?

Back

Active transport is the movement of substances against a concentration gradient, requiring energy (usually in the form of ATP).

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 is an isotonic solution?

Back

An isotonic solution has the same solute concentration inside and outside of the cell, resulting in no net movement of water.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher solute concentration outside the cell than inside, causing water to move out of the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower solute concentration outside the cell than inside, causing water to move into the cell.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials in vesicles, often used to remove waste.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell engulfs materials from the outside environment, bringing them into the cell.