Cellular Transport Flashcard

Front

What is osmosis?

Back

Osmosis is the movement of water across a membrane.

Front

Where are the lipid tails located in the cell membrane?

Back

The lipid tails are located in the inner part of the bilayer.

Front

What do the brown structures in the cell membrane represent?

Back

The brown structures represent channel proteins.

Front

What is diffusion?

Back

Diffusion is the movement of particles from high to low concentration.

Front

What does it mean for a cell membrane to be selectively permeable?

Back

It means that certain things can enter while others cannot.

Front

What is the primary function of channel proteins?

Back

Channel proteins facilitate the transport of specific substances across the cell membrane.

Front

Define passive transport.

Back

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

Front

What is active transport?

Back

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

Front

Give an example of a substance that moves via osmosis.

Back

Water is a substance that moves via osmosis.

Front

What role do phospholipids play in the cell membrane?

Back

Phospholipids form the basic structure of the cell membrane, creating a bilayer.