IGCSE BIO CH 1-5

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

Which process requires energy?

• Diffusion
• Osmosis
• Active Transport

How does osmosis differ from active transport?

• Osmosis moves molecules from a high to a low concentration
• Osmosis requires energy
• Osmosis moves through a membrane
• Osmosis moves water from a dilute to a concentrated solution

Which process moves ions from the soil into roots?

• Diffusion
• Osmosis
• Active Transport

Which of these would decrease the rate of diffusion?

• Increasing the distance
• Increasing the temperature
• Increasing the surface area
• Increasing the concentration gradient