Cell Transport

Front

What is osmosis?

Back

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

Front

What happens to an animal cell in a hypertonic solution?

Back

An animal cell placed in a hypertonic (salty) solution will shrink and get smaller due to the loss of water.

Front

Define active transport.

Back

Active transport is the movement of particles against their concentration gradient, requiring energy (ATP) to move substances from low to high concentration.

Front

What is passive transport?

Back

Passive transport is the movement of particles from an area of high concentration to an area of low concentration without the use of energy.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of any particles from high to low concentration, while osmosis specifically refers to the movement of water.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, leading to water moving out of cells placed in it.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, causing water to move into cells placed in it.

Front

What is isotonic solution?

Back

An isotonic solution has equal concentrations of solutes inside and outside the cell, resulting in no net movement of water.

Front

What is the role of the cell membrane in transport?

Back

The cell membrane regulates the movement of substances in and out of the cell, maintaining homeostasis.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.