Cell Membrane

Front

What is a phospholipid?

Back

A phospholipid is a type of lipid molecule that is a major component of cell membranes, consisting of a hydrophilic 'head' and two hydrophobic 'tails'.

Front

What part of a phospholipid is hydrophobic?

Back

The lipid 'tails'.

Front

What does 'hydrophobic' mean?

Back

Hydrophobic means water fearing; it does not associate with water.

Front

What does 'hydrophilic' mean?

Back

Hydrophilic means water loving; it associates with water.

Front

What does 'polar' mean in chemistry?

Back

Polar means a molecule has areas of positive and negative charge.

Front

Where are carbohydrates found in a plasma membrane?

Back

Carbohydrates are found on the outside of the membrane.

Front

What is the function of the cell membrane?

Back

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

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 role do proteins play in the cell membrane?

Back

Proteins in the cell membrane assist in transport, act as receptors, and provide structural support.

Front

What is the fluid mosaic model?

Back

The fluid mosaic model describes the cell membrane as a flexible layer made of lipid molecules with proteins embedded, allowing for movement and diversity.