Cell Membrane

Front

What is diffusion?

Back

Diffusion is the process when molecules move from a high concentration to a low concentration.

Front

Something is ___________ ____________ when some molecules can cross the membrane while others cannot.

Back

Selectively (or Semi) Permeable.

Front

Which type of Passive Transport is being represented in this picture?

Back

Facilitated Diffusion.

Front

Which part of the phospholipid is attracted to water?

Back

Hydrophilic Head.

Front

The _________ of the phospholipids in a cell membrane face outward because they are ___________.

Back

heads, hydrophilic.

Front

What is the function of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, providing protection and support.

Front

What are phospholipids?

Back

Phospholipids are molecules that make up the cell membrane, consisting of a hydrophilic head and two hydrophobic tails.

Front

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

Back

It means that the membrane allows certain substances to pass while blocking others.

Front

What is osmosis?

Back

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

Front

What is the role of proteins in the cell membrane?

Back

Proteins help transport substances across the membrane and can act as receptors for signaling.