Cell Membrane Structures

Front

What does it mean when the cell membrane is described as semipermeable or selectively permeable?

Back

It means the cell membrane allows some, but not all, molecules to pass through.

Front

What forms the two layers of the cell membrane?

Back

Phospholipids.

Front

Which biomolecule is NOT a structural part of the cell membrane?

Back

Nucleic acids.

Front

What is the primary component that makes up most of the cell membrane?

Back

Lipids.

Front

What is one important function of the proteins in the cell membrane?

Back

To provide a channel or passage for certain molecules to pass through.

Front

What are phospholipids?

Back

Molecules that form the bilayer of the cell membrane, consisting of a hydrophilic head and hydrophobic tails.

Front

What role do carbohydrates play in the cell membrane?

Back

They are involved in cell recognition and signaling.

Front

What is the fluid mosaic model?

Back

A model that describes the structure of the cell membrane as a mosaic of various components that move fluidly.

Front

What is the significance of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the membrane's fluidity.

Front

How do proteins contribute to the functionality of the cell membrane?

Back

Proteins can act as receptors, channels, or enzymes, facilitating various cellular processes.