Question

Practice: Putting it All Together

Part 1: Fill in the Blank
1. What property of the cell membrane allows some molecules to pass easily through, but not all?

Answer 1

The property of the cell membrane that allows some molecules to pass easily through, but not all, is called selective permeability. It is important for maintaining homeostasis within the cell and controlling the movement of substances.

Step-by-step explanation:

The property of the cell membrane that allows some molecules to pass easily through, but not all, is called selective permeability. The cell membrane is composed of a phospholipid bilayer with embedded proteins. The phospholipids have a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail, which creates a barrier that only allows certain molecules to pass through. This is important for maintaining homeostasis within the cell and controlling the movement of substances in and out of the cell.

Learn more about Selective Permeability of the Cell Membrane