Diffusion

What are two types of cellular transport?

• diffusion and active transport

• active transport and passive transport

• diffusion and osmosis

• active transport and osmosis

What is the major difference between the two types of transport?

• One is highly concentrated and the other is more diluted

• One has a greater surface area than the other

• One requires energy and the other does not

• One requires higher temperatures than the other

What are two examples of passive transport?

• Active transport and diffusion

• Active transport and osmosis

• Diffusion and osmosis

• Diffusion and Concentration

What is the definition of diffusion?

• Diffusion is the movement of particles from an area of high concentration to an area of low concentration down a concentration gradient

• Diffusion is the movement of water from an area of high concentration to an area of low concentration down a concentration gradient

• Diffusion is the movement of particles against a concentration gradient

• Diffusion is the movement of particles from an area of low concentration to an area of high concentration

What is meant by the RATE of diffusion?

• The concentration of diffusion

• The surface area of diffusion

• The speed of diffusion

• The pressure of diffusion

Give two factors that may affect the rate of diffusion.

• Temperature and weight

• Weight and pressure

• Surface area and pressure

• Surface area and weight

The greater the concentration, the lower the rate of diffusion.

• True

• False

Concentrated Joy Dishwashing Liquid takes longer to diffuse through water than diluted Joy Dishwashing Liquid.

• True

• False

Lumps of Kool-Aid takes longer to diffuse than a packet of loose grains of Kool-Aid.

• True

• False

Dendroy smells perfume sprayed in the bedroom faster than he smells it if it is sprayed in the courtyard outside. Which factor is this an example of?

• Concentration

• Diffusion distance

• Particle Size

• Heat