TED-ED: Cell membranes are way more complicated than you think - Nazzy Pakpour

The video explains the complex structure and function of cell membranes, highlighting the fluid mosaic model. It describes how phospholipids, cholesterol, and proteins contribute to membrane resilience, flexibility, and functionality. The video also covers cell communication, endocytosis, and defense mechanisms against toxins, emphasizing the critical role of membranes in life.

What is the primary structural component of the cell membrane that contributes to its fluid mosaic nature?

• Cholesterol

• Phospholipids

• Carbohydrates

• Proteins

How does cholesterol contribute to the cell membrane's functionality?

• It maintains the membrane's fluidity.

• It forms channels for molecule transport.

• It acts as a receptor for signaling.

• It provides structural support.

Which type of molecules can easily pass through the phospholipid bilayer without assistance?

• Polar molecules

• Non-polar molecules

• Ions

• Proteins

What is the process called when the cell membrane engulfs substances to transport them into the cell?

• Exocytosis

• Osmosis

• Diffusion

• Endocytosis

What is one method scientists are exploring to protect cells from membrane-breaching toxins?

• Using antibiotics

• Developing vaccines

• Creating nano-sponges

• Enhancing immune response