Cell Transport

Front

What is an isotonic solution?

Back

An isotonic solution has the same solute concentration inside and outside of the cell, resulting in no net movement of water.

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks in size because water moves out of the cell to the area of higher solute concentration.

Front

What is exocytosis?

Back

Exocytosis is a type of active transport that moves waste or materials out of the cell.

Front

What is required for active transport?

Back

Active transport requires energy to move substances against their concentration gradient.

Front

What is the difference between active transport and passive transport?

Back

Active transport moves particles from low to high concentration using energy, while passive transport moves particles from high to low concentration without energy.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher solute concentration outside the cell than inside, causing water to leave 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 enter the cell.

Front

What is diffusion?

Back

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

Front

What is osmosis?

Back

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

Front

What is the sodium-potassium pump?

Back

The sodium-potassium pump is an active transport mechanism that moves sodium out of the cell and potassium into the cell.