Bio Honors 7.2 Plasma/Cell Membrane

Front

What type of receptor is located on the outside of the cell membrane?

Back

Extracellular receptor

Front

What are the main components of the plasma membrane?

Back

Phospholipids, proteins, cholesterol, and carbohydrates

Front

What part of the plasma membrane is responsible for selective permeability?

Back

Phospholipid bilayer

Front

What is the structure that describes the plasma membrane as flexible and composed of various components?

Back

Fluid Mosaic Model

Front

What are the hydrophobic parts of a phospholipid molecule?

Back

The lipid 'tails'

Front

What is the function of proteins in the plasma membrane?

Back

Transport, signaling, and structural support

Front

What is the role of cholesterol in the plasma membrane?

Back

To maintain fluidity and stability of the membrane

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 phospholipid bilayer in cell membranes?

Back

It creates a barrier that separates the inside of the cell from the external environment.

Front

How do integral proteins differ from peripheral proteins in the plasma membrane?

Back

Integral proteins span the membrane, while peripheral proteins are attached to the surface.