Cell Transport

Front

What is cell transport?

Back

Cell transport refers to the movement of substances across the cell membrane, which can occur through passive or active mechanisms.

Front

What does it mean when a solution is hypotonic?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, causing cells to swell as water enters.

Front

What is osmosis?

Back

Osmosis is the facilitated diffusion of water through a selectively permeable membrane.

Front

What does permeable mean?

Back

Permeable means that substances can pass through a membrane.

Front

What is the difference between isotonic, hypertonic, and hypotonic solutions?

Back

Isotonic solutions have equal solute concentrations, hypertonic solutions have a higher solute concentration outside the cell, and hypotonic solutions have a lower solute concentration outside the cell.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which substances move across a membrane with the help of transport proteins, without the use of energy.

Front

What does hydrophilic mean?

Back

Hydrophilic means 'water-loving', referring to substances that can interact with water.

Front

What does hydrophobic mean?

Back

Hydrophobic means 'water-fearing', referring to substances that do not interact well with water.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (ATP) to do so.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, following the concentration gradient.