Cell Membrane

Front

What are the main components of the cell membrane?

Back

The main components of the cell membrane are lipids, proteins, and carbohydrates.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, providing protection and support.

Front

What is a selectively permeable membrane?

Back

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

Front

Define osmosis.

Back

Osmosis is the movement of water molecules from a region of higher concentration to a region of lower concentration through a partially permeable membrane.

Front

What is diffusion?

Back

Diffusion is the net movement of molecules from a region of higher concentration to a region of lower concentration.

Front

What role do proteins play in the cell membrane?

Back

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

Front

What are carbohydrates' role in the cell membrane?

Back

Carbohydrates on the cell membrane are involved in cell recognition and signaling.

Front

What happens to water molecules in a hypertonic solution?

Back

In a hypertonic solution, water molecules move out of the cell, causing it to shrink.

Front

What happens to water molecules in a hypotonic solution?

Back

In a hypotonic solution, water molecules move into the cell, causing it to swell.

Front

What is active transport?

Back

Active transport is the movement of molecules against their concentration gradient, requiring energy.