Exploring the Cell Membrane and Fluid Mosaic Model

What is the primary function of the cell membrane?

• To produce proteins

• To generate energy for the cell

• To protect the cell from the outside environment

• To store genetic information

Tags

NGSS.HS-LS1-3

Which component makes up the majority of the cell membrane?

• Phospholipids

• Cholesterol

• Carbohydrates

• Proteins

What is the structure of a phospholipid?

• A polar head group and two fatty acid tails

• A non-polar head group and two fatty acid tails

• A polar head group and one fatty acid tail

• A non-polar head group and one fatty acid tail

What role does cholesterol play in the cell membrane?

• It acts as a receptor

• It maintains the fluidity of the membrane

• It stores genetic information

• It transports molecules in and out of the cell

How does cholesterol affect the cell membrane at higher temperatures?

• It has no effect

• It decreases the fluidity

• It breaks down the membrane

• It increases the fluidity

What is an integral protein?

• A protein that sits on top of the membrane

• A protein that crosses the entire membrane

• A protein that is found inside the cell membrane

• A protein that binds to carbohydrates

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

• To act as receptors and transport molecules

• To produce energy

• To maintain the fluidity of the membrane

• To store genetic information

Where are glycoproteins and glycolipids mainly found?

• Inside the cell membrane

• On the outside of the membrane

• In the nucleus

• In the cytoplasm

What is the fluid mosaic model?

• A model describing the cell membrane as a fluid structure with various components

• A model describing the cell membrane as a rigid structure

• A model describing the genetic information in the cell

• A model describing the static nature of the cell membrane

Why is the cell membrane described as 'fluid'?

• Because it is flexible

• Because its components can move around

• Because it is made of water

• Because it is a liquid