Cell Membrane 2.0

Front

What is the primary structure of the cell membrane?

Back

The primary structure of the cell membrane is the phospholipid bilayer.

Front

What are the main components of the cell membrane?

Back

The main components of the cell membrane include phospholipids, proteins, cholesterol, and carbohydrate chains.

Front

What role do phospholipids play in the cell membrane?

Back

Phospholipids form the basic structure of the cell membrane, creating a barrier that separates the inside of the cell from the external environment.

Front

What is the function of integral proteins in the cell membrane?

Back

Integral proteins assist in the transport of substances across the cell membrane and can also act as receptors for signaling.

Front

How do carbohydrate chains contribute to cell membrane function?

Back

Carbohydrate chains are involved in cell recognition and communication with the extracellular environment.

Front

What is the role of cholesterol in the cell membrane?

Back

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

Front

What types of molecules can easily pass through the cell membrane?

Back

Small, nonpolar molecules can easily pass through the cell membrane.

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.

Front

What is the significance of the fluid mosaic model?

Back

The fluid mosaic model describes the cell membrane as a dynamic structure with various components that can move and shift, contributing to its functionality.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.