Front

What is the primary structure that makes up the cell membrane?

Back

The primary structure that makes up the cell membrane is the phospholipid bilayer.

Front

What are the hydrophobic parts of phospholipids in the cell membrane called?

Back

The hydrophobic parts of phospholipids are called tails.

Front

What role do cell surface markers play in cellular function?

Back

Cell surface markers allow cells to recognize each other and act like ID tags.

Front

How does cholesterol contribute to the cell membrane?

Back

Cholesterol strengthens and stabilizes the cell membrane.

Front

What is the main function of the plasma membrane?

Back

The main function of the plasma membrane is to regulate what is transported into and out of the cell.

Front

What is the term for the model that describes the structure of the cell membrane?

Back

The fluid mosaic model describes the structure of the cell membrane.

Front

What type of molecules can easily pass through the cell membrane?

Back

Small nonpolar molecules can easily pass through the cell membrane.

Front

What is the significance of the phospholipid bilayer in the cell membrane?

Back

The phospholipid bilayer creates a semi-permeable barrier that separates the interior of the cell from the external environment.

Front

What are integral proteins and their function in the cell membrane?

Back

Integral proteins span the membrane and are involved in transporting substances across the membrane.

Front

What is the difference between passive and active transport across the cell membrane?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.