Cell Membrane

Front

What is the main component of the plasma membrane?

Back

Lipid

Front

What forms the channels and pumps in the phospholipid bilayer?

Back

Proteins

Front

What does it mean when a membrane is described as selectively permeable?

Back

Some molecules can cross the membrane while others cannot.

Front

Which molecules are responsible for transporting large or charged (polar) molecules across the cell membrane?

Back

Proteins

Front

In a lipid bilayer, which fatty acid tails face each other and exclude water?

Back

Hydrophobic tails

Front

What is the structure of the cell membrane primarily composed of?

Back

A phospholipid bilayer.

Front

What role do carbohydrates play in the cell membrane?

Back

They are involved in cell recognition and signaling.

Front

What is the function of cholesterol in the cell membrane?

Back

It helps to stabilize the membrane's fluidity.

Front

What is the difference between hydrophilic and hydrophobic molecules?

Back

Hydrophilic molecules are attracted to water, while hydrophobic molecules repel water.

Front

What is the significance of the fluid mosaic model?

Back

It describes the cell membrane as a dynamic structure with various components that move freely.