Cell Membrane

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, providing protection and support.

Front

Define 'selectively permeable'.

Back

Selectively permeable means that a membrane allows certain substances to pass through while blocking others.

Front

What does 'hydrophobic' mean in the context of the cell membrane?

Back

Hydrophobic refers to the part of the cell membrane that repels water and does not interact with it.

Front

What does 'hydrophilic' mean?

Back

Hydrophilic means 'water-loving' and refers to molecules that interact well with water.

Front

What is the role of proteins in the cell membrane?

Back

Proteins in the cell membrane assist in transporting substances, acting as channels or carriers.

Front

What is the structure of the cell membrane?

Back

The cell membrane is composed of a phospholipid bilayer with embedded proteins, cholesterol, and carbohydrates.

Front

What is the significance of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the cell membrane's fluidity and structure.

Front

What are glycoproteins?

Back

Glycoproteins are proteins with carbohydrate chains attached, important for cell recognition and signaling.

Front

What is passive transport?

Back

Passive transport is the movement of substances across the 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.