diffusion

What is Brownian motion?

• Random motion of particles suspended in a fluid

• A type of weather pattern

• A type of plant growth

• A type of dance movement

Explain how concentration gradient affects the process of diffusion.

• Concentration gradient only affects the color of particles during diffusion

• Concentration gradient has no impact on diffusion

• Concentration gradient causes particles to move in the opposite direction during diffusion

• Concentration gradient affects diffusion by influencing the speed at which particles move across a membrane or barrier.

How does temperature impact the rate of diffusion in a substance?

• Temperature decreases the rate of diffusion by slowing down particle movement

• Temperature has no impact on the rate of diffusion

• Temperature causes diffusion to occur in the opposite direction

• Temperature impacts the rate of diffusion by increasing the kinetic energy of particles, leading to faster diffusion.

Describe the role of particle size in the process of diffusion.

• Diffusion is not affected by particle size

• Particle size influences the speed of diffusion, with smaller particles diffusing faster than larger particles.

• Larger particles diffuse faster than smaller particles

• Particle size has no impact on diffusion rate

What factors can influence the speed of diffusion in a solution?

• Time, shape, and texture

• Pressure, color, and volume

• Temperature, concentration gradient, molecular size, and medium

• Density, taste, and odor

Discuss the concept of diffusion in gases versus diffusion in liquids.

• Diffusion in gases is slower than diffusion in liquids due to the lower kinetic energy in gases.

• Diffusion in gases is faster than diffusion in liquids due to the higher kinetic energy and greater space between particles in gases.

• Diffusion in gases is faster than diffusion in liquids due to the lower kinetic energy in gases.

• Diffusion in gases is slower than diffusion in liquids due to the greater space between particles in gases.

How does the surface area of a substance affect the rate of diffusion?

• The surface area of a substance has no impact on the rate of diffusion

• Increasing surface area decreases the rate of diffusion

• The surface area of a substance affects the rate of diffusion by increasing the contact area for molecules to move across, resulting in a faster rate of diffusion.

• Surface area only affects the color of the substance, not the rate of diffusion

Diffusion occurs only in gases

• True

• False

How do the particles move in diffusion?

• From a region of low concentration to a region of high concentration

• From a region of high concentration to a region of low concentration

• From a region of low concentration to a region of low concentration

• From a region of high concentration to a region of high concentration

How does the body remove carbon dioxide from the cells?

• The body cells converts carbon dioxide into carbon monoxide

• The body cells don't expel the waste, they store them for future use

• The body cells expel the carbon dioxide through the use of the nucleus

• The carbon dioide diffuses out of the body cells and into the bloodstream due to differences in the concentration gradient