Active Transport

• Is active transport a passive or active process?

  Active - it requires energy
• True or false? Active transport can only take place across a membrane.

  True
• Which process provides the energy required for active transport?

  Respiration
• Where do plants absorb mineral ions from?

  Soil
• Why can't plants absorb mineral ions by diffusion?

  The concentration is higher in the cell than in the soil.
• Which cells in the plant are adapted to absorb mineral ions?

  Root hair cells
• Other than mineral ions, which other molecule do root hair cells absorb? 

  Water
• Active transport is the movement of molecules across a membrane, from a region of _____ concentration to a region of _____ concentration. This requires _____ from respiration.

  lower

  higher

  energy