IB Bio 1.3 and 1.4

Front

What allows cells to recognize each other and act like ID tags?

Back

Carbohydrates

Front

What is the primary function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

What does amphipathic mean?

Back

The molecule has polar areas and non-polar areas.

Front

What do all cells have?

Back

Plasma membrane

Front

What strengthens and stabilizes the cell membrane?

Back

Cholesterol

Front

What are the main components of the plasma membrane?

Back

Phospholipids, proteins, carbohydrates, and cholesterol.

Front

What is the role of proteins in the plasma membrane?

Back

Proteins assist in transport, act as enzymes, and serve as receptors.

Front

Define phospholipid.

Back

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

Front

What is the fluid mosaic model?

Back

A model that describes the structure of the plasma membrane as a mosaic of various components that move freely.

Front

What is the significance of cholesterol in the plasma membrane?

Back

Cholesterol helps to maintain membrane fluidity and stability.