Cell Membrane and Transport

Front

What is the primary function of the cell membrane?

Back

Regulating what enters and exits the cell.

Front

What are phospholipids?

Back

Molecules that make up the cell membrane, consisting of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to the inside of the cell, causing the cell to swell.

Front

What is an isotonic solution?

Back

A solution with the same concentration of solutes as the inside of the cell, allowing the cell to maintain its normal shape.

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to the inside of the cell, causing the cell to shrink.

Front

How do proteins function in the cell membrane?

Back

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

Front

What role do carbohydrates play in the cell membrane?

Back

Carbohydrates are involved in cell recognition and communication.

Front

What is homeostasis?

Back

The process by which a cell maintains a stable internal environment.

Front

What is selective permeability?

Back

The ability of the cell membrane to allow certain substances to pass while blocking others.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.