Gen Bio Reviewer

It is the movement of materials across the cell membrane.

Cell membrane is also called ____.

Separates the interior of the cell from the outside environment

Which is not a function of the cell membrane?

• Maintains internal temperature called Homeostasis

• Provide Protection and Support

• Controls what enters and exits the cell

Answer explanation

Maintains an internal balance not internal temperature

Makes up most of the membrane

Which component of a cell membrane helps communicate with other cells?

Which component of the cell membrane helps with flexibility?

Phosphate Head

• Polar

• Non-Polar

• Hydrophilic

• Hydrophobic

Fatty Acid Tails

• Polar

• Non-Polar

• Hydrophilic

• Hydrophobic

The arrangements of phospholipids and proteins in cell membrane proposed by Singer and Nicolson (1972).