Passive Transport Review

Front

What is the characteristic of a cell membrane that allows it to control materials entering and leaving a cell?

Back

A cell membrane is semi-permeable.

Front

What regulates what enters and leaves a cell?

Back

Cell Membrane

Front

What type of transport uses a transport protein?

Back

Facilitated diffusion.

Front

Which part of the cell controls the movement of substances?

Back

Cell membrane.

Front

Which process moves substances with the concentration gradient?

Back

Diffusion.

Front

Define 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 semi-permeable membrane.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a membrane via protein channels.

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.

Front

What role do transport proteins play in cell membranes?

Back

Transport proteins help move substances across the cell membrane, especially those that cannot pass through the lipid bilayer.