Cell Membrane 2.0

Front

What is the structure of the cell membrane primarily composed of?

Back

The cell membrane is primarily composed of a phospholipid bilayer.

Front

What are the two main components of phospholipids in the cell membrane?

Back

The two main components of phospholipids are hydrophilic (water-loving) heads and hydrophobic (water-hating) tails.

Front

What does the term 'hydrophobic' refer to in the context of the cell membrane?

Back

Hydrophobic refers to the property of the phospholipid tails that repel water.

Front

What does the term 'hydrophilic' refer to in the context of the cell membrane?

Back

Hydrophilic refers to the property of the phospholipid heads that attract water.

Front

Why is the phospholipid bilayer important for cell membrane function?

Back

The phospholipid bilayer creates a barrier that regulates the movement of substances in and out of the cell.

Front

What happens to the cell membrane when exposed to water on both sides?

Back

The hydrophobic tails of the phospholipids would repel water, preventing the formation of a stable membrane.

Front

What role does the cell membrane play in maintaining homeostasis?

Back

The cell membrane regulates what enters and leaves the cell, helping to maintain a stable internal environment.

Front

What is the significance of the fluid mosaic model in understanding cell membranes?

Back

The fluid mosaic model describes the cell membrane as a dynamic structure with various proteins and lipids that can move laterally within the layer.

Front

How do proteins contribute to the function of the cell membrane?

Back

Proteins in the cell membrane assist in transport, communication, and signaling between the cell and its environment.

Front

What is selective permeability in the context of the cell membrane?

Back

Selective permeability refers to the ability of the cell membrane to allow certain substances to pass while blocking others.