Cell Membrane

Front

What is the structure of the cell membrane?

Back

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

Front

What is the function of the cell membrane?

Back

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

Front

Define hydrophobic region in the context of the cell membrane.

Back

The hydrophobic region of the cell membrane refers to the fatty acid tails of phospholipids that repel water.

Front

What is exocytosis?

Back

Exocytosis is the process by which large molecules are expelled from a cell by vesicles fusing with the cell membrane.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in large molecules by engulfing them in a vesicle.

Front

What are the main components of the cell membrane?

Back

The main components of the cell membrane are lipids, proteins, 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 a hypertonic solution?

Back

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

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes inside and outside the cell, resulting in no net movement of water.

Front

What is a hypotonic solution?

Back

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