Cellular Transport

Front

What is the primary function of proteins in the cell membrane?

Back

Proteins in the cell membrane allow the cell to interact with its environment (surrounding cells).

Front

What type of transport uses a protein pump?

Back

Protein Pump is a type of active transport that moves substances against their concentration gradient.

Front

What is the role of the plasma membrane?

Back

The plasma membrane controls what enters and exits the cell.

Front

Does water movement across the cell membrane require energy?

Back

No, it is passive transport.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a process that allows substances to cross membranes with the assistance of special proteins, without using energy.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy.

Front

What is osmosis?

Back

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

Front

What is the difference between diffusion and facilitated diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration, while facilitated diffusion requires specific proteins to help transport molecules.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a membrane.