Cell Transport

Front

What is osmosis?

Back

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

Front

What is active transport?

Back

Active transport is the process of moving substances across a cell membrane against their concentration gradient, which requires energy.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the need for energy, typically moving from high to low concentration.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in the concentration of a substance between two areas.

Front

What is facilitated diffusion?

Back

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

Front

How do molecules move during osmosis?

Back

Molecules move from an area of higher water concentration to an area of lower water concentration.

Front

What is the role of energy in active transport?

Back

Energy is required in active transport to move molecules against their concentration gradient.

Front

What happens to plant cells in a hypertonic solution?

Back

In a hypertonic solution, plant cells lose water and may become plasmolyzed, causing the cell membrane to pull away from the cell wall.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration.