Cell Membrane

Front

Passive Transport uses ____ energy

Back

no

Front

What three substances make up the cell membrane?

Back

lipids, proteins, carbohydrates

Front

What is the hydrophobic region of the cell membrane?

Back

The hydrophobic region is the part of the cell membrane that repels water, typically composed of fatty acid tails of phospholipids.

Front

Which type of movement has channels that help large molecules move through the cell membrane?

Back

facilitated diffusion

Front

Which type of movement has proteins that act like pumps to move molecules through the cell membrane?

Back

active transport

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

Define diffusion in the context of cell membranes.

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What role do proteins play in the cell membrane?

Back

Proteins assist in transport, act as receptors, and provide structural support.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What are phospholipids?

Back

Phospholipids are molecules that make up the cell membrane, consisting of a hydrophilic head and two hydrophobic tails.