Cell Membrane & Cell Transport

Front

What does 'Hydrophobic' mean?

Back

Hydrophobic refers to substances that repel water; they do not mix with or dissolve in water.

Front

What is the Fluid Mosaic Model?

Back

The Fluid Mosaic Model describes the structure of the cell membrane as flexible and composed of various components, including phospholipids, proteins, and cholesterol.

Front

How do cells maintain homeostasis?

Back

Cells maintain homeostasis by regulating what enters and leaves the cell, ensuring a stable internal environment.

Front

What is Equilibrium in the context of cell transport?

Back

Equilibrium is the state when the concentration of a substance is equal inside and outside the cell, resulting in no net movement of that substance.

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 function of phospholipids in the cell membrane?

Back

Phospholipids form the basic structure of the cell membrane, creating a bilayer that is semi-permeable.

Front

What is the difference between Hydrophobic and Hydrophilic?

Back

Hydrophobic substances repel water, while hydrophilic substances attract and interact with water.

Front

What is diffusion?

Back

Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is the role of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the cell membrane's fluidity and integrity.