Cell Transport Flashcard

Front

What is passive transport?

Back

Passive transport is the movement of molecules from high to low concentrations without the use of energy.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell uses energy to bring a large amount of substance into the cell.

Front

What does high concentration mean?

Back

High concentration refers to having more of a substance in a given area.

Front

What happens in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing the cell to swell.

Front

What is active transport?

Back

Active transport is a type of cell transport that requires the use of energy to move substances against their concentration gradient.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration without the use of energy.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a process that allows substances to cross membranes with the assistance of special proteins.

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels large amounts of material using energy.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane is a barrier that allows certain substances to pass while blocking others.