Cell Membrane and Transport

Front

What is the process called when diffusion occurs with the help of membrane proteins?

Back

Facilitated diffusion.

Front

What term describes the fatty acid tails of phospholipids in the cell membrane?

Back

Hydrophobic.

Front

What is the term for the process where the cell membrane engulfs particles?

Back

Endocytosis.

Front

What is the diffusion of water across a selectively permeable membrane called?

Back

Osmosis.

Front

What term describes a solution where the concentration of water inside the cell is equal to the concentration of water in the environment?

Back

Isotonic.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What are the two main types of transport across the cell membrane?

Back

Passive transport and active transport.

Front

What is the difference between passive transport and active transport?

Back

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

Front

What is the role of cholesterol in the cell membrane?

Back

To maintain membrane fluidity and stability.

Front

What is the term for the movement of molecules from an area of higher concentration to an area of lower concentration?

Back

Diffusion.