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WorksheetsDiffusion and Osmosis Quiz
Total questions: 10
Worksheet time: 5mins
What is diffusion?
The movement of particles from lower to higher concentration
The movement of particles from higher to lower concentration
The movement of water through a membrane
The movement of particles against a concentration gradient
What happens to the scent particles of an air freshener when released into a room?
They remain in one spot
They sink to the floor
They collide with air particles and spread throughout the room
They all move to the ceiling
Which factor does NOT increase the rate of diffusion?
Increasing temperature
Increasing pressure
Decreasing concentration gradient
Stirring the mixture
What is a concentration gradient?
The process of particles spreading out evenly
The difference in concentration between two areas
The speed at which particles move
The color change in a solution
How do oxygen and carbon dioxide move in and out of cells?
Through active transport
By diffusion
By osmosis
Through endocytosis
Why do cucumbers lose water when placed in a salt solution?
The salt absorbs the water
Water moves out to balance the concentration
Salt particles enter the cucumber
The cucumber cells break down
What role does the cell membrane play in diffusion?
It blocks all substances
It allows all substances to pass freely
It selectively allows certain substances to pass through
It transports particles against the gradient
Which of the following best describes osmosis?
Movement of particles from a higher to a lower concentration
Movement of water from a lower to a higher concentration
Movement of water through a selectively permeable membrane
Movement of particles in response to temperature
What is the effect of heating on particle movement during diffusion?
Particles move slower
Particles move faster
Particles stop moving
Particles move in a circular motion
In which process is diffusion NOT involved?
Oxygen entering blood cells
Carbon dioxide leaving muscle cells
Food coloring spreading in water
Sodium pumped out of nerve cells
