F block Diffusion mini Quiz

What is the definition of diffusion?

• The movement of particles from an area of lower concentration to an area of higher concentration.

• The movement of particles that requires energy.

• The net movement of particles from an area of higher concentration to an area of lower concentration.

• The movement of particles in a circular motion.

Which of the following is an example of diffusion?

• Boiling water

• Freezing water

• Spraying perfume in a room

• Melting ice

What type of process is diffusion?

• Active process

• Mechanical process

• Chemical process

• Passive process

Which of the following factors does NOT affect the rate of diffusion?

• Temperature

• Surface area

• Concentration gradient

• Color of particles

What is meant by a 'partially permeable' membrane?

• It allows all molecules to pass through.

• It allows only large molecules to pass through.

• It blocks all molecules from passing through.

• It allows only some molecules to pass through.

Which of the following molecules can typically diffuse through a cell membrane?

• DNA

• Proteins

• Glucose

• Starch

How does temperature affect the rate of diffusion?

• Lower temperature increases the rate of diffusion.

• Temperature has no effect on diffusion.

• Higher temperature decreases the rate of diffusion.

• Higher temperature increases the rate of diffusion.

What happens to particles during diffusion?

• They move in a circular pattern.

• They stay in one place.

• They move in a straight line.

• They move randomly and spread out evenly.

Which factor increases the rate of diffusion when it is larger?

• Concentration gradient

• Viscosity of the medium

• Color of the solution

• Particle size

Why do larger surface areas increase the rate of diffusion?

• They increase the size of particles.

• They allow more particles to diffuse at once.

• They change the color of particles.

• They decrease the energy of particles.