Cell Membrane & Cell Transport

Front

What type of solution has the same solute concentration inside of and outside of the cell?

Back

Isotonic solution has equal solute concentration inside and outside the cell, resulting in no net movement of water.

Front

What does 'water loving' mean in terms of molecules?

Back

Hydrophilic refers to molecules that are attracted to water and can interact with it.

Front

What is osmosis?

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What does 'water fearing' mean in terms of molecules?

Back

Hydrophobic refers to molecules that repel water and do not interact with it.

Front

What are the two parts of a phospholipid?

Back

A phospholipid consists of a hydrophilic head and a hydrophobic tail.

Front

What is the function of the cell membrane?

Back

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

Front

Define diffusion.

Back

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

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher solute concentration outside the cell than inside, causing water to move out of the cell.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower solute concentration outside the cell than inside, causing water to move into the cell.

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.