🟡2.54:REVIEW FLASHCARDIZZ QUIZ 2.3 MEMBRANE & TRANSPORT 5D14WS124

Front

What is the direction of net movement of water when comparing two solutions with different concentrations?

Back

Water moves from the area of lower solute concentration to the area of higher solute concentration.

Front

What model describes the structure of the cell membrane?

Back

Fluid Mosaic Model.

Front

What part of a phospholipid molecule is hydrophilic?

Back

The head.

Front

Does active transport require energy?

Back

Yes, active transport requires energy to move substances against their concentration gradient.

Front

What type of protein is loosely attached to the cell membrane?

Back

Peripheral or surface protein.

Front

What is osmosis?

Back

The movement of water across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the role of cholesterol in the cell membrane?

Back

To maintain membrane fluidity and stability.