Cell Transport and Membrane Flashcard

Front

What is Endocytosis?

Back

Endocytosis is a type of transport where the cell membrane forms a vesicle to bring substances into the cell.

Front

What is Passive Transport?

Back

Passive transport is a type of transport that does not require energy and relies on the concentration gradient to move substances.

Front

What is Facilitated Diffusion?

Back

Facilitated diffusion is a type of transport that uses protein channels to move substances across the cell membrane down a concentration gradient.

Front

What is the main function of the cell membrane?

Back

The main function of the cell membrane is to regulate the movement of substances in and out of the cell.

Front

What is Osmosis?

Back

Osmosis is the process by which water molecules move across a selectively permeable membrane.

Front

What is Exocytosis?

Back

Exocytosis is the process by which substances are expelled from the cell through vesicles that fuse with the cell membrane.

Front

What is the difference between Active Transport and Passive Transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances down their concentration gradient.

Front

What role do protein channels play in cell transport?

Back

Protein channels facilitate the movement of specific substances across the cell membrane, particularly during facilitated diffusion.

Front

What is Phagocytosis?

Back

Phagocytosis is a type of endocytosis where the cell engulfs large particles or cells.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance across a space, which drives the movement of substances during diffusion.