Test - Cell Transport

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is osmosis?

Back

Osmosis is the process where only water molecules pass through a semipermeable membrane from a region of high water concentration to a region of low water concentration.

Front

Why are diffusion and osmosis important to cells?

Back

They allow cells to take in materials/substances without using energy.

Front

What is equilibrium in the context of cell transport?

Back

Equilibrium is the state where the concentration of particles inside a cell is the same as the concentration of particles outside the cell.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of low concentration to a region of high concentration, requiring energy.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, including processes like diffusion and osmosis.

Front

Give an example of diffusion in everyday life.

Back

An example of diffusion is when the smell of perfume spreads throughout a room.

Front

What role does the cell membrane play in transport?

Back

The cell membrane controls what enters and exits the cell, allowing for selective transport of substances.

Front

What is a semipermeable membrane?

Back

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

Front

How does temperature affect diffusion?

Back

Higher temperatures increase the energy of molecules, leading to faster diffusion rates.