Active transport

• What is active transport?

  Movement of particles against a concentration gradient from an area of low concentration to an area of high concentration
• Why do plants use active transport for mineral ions?

  To absorb minerals from dilute soil solutions
• What role do root hair cells play in active transport?

  They increase surface area for mineral absorption
• What do root hair cells absorb from the soil?

  Water and mineral ions
• Why is active transport essential for plant growth?

  It allows absorption of minerals against a gradient
• What energy source is required for active transport?

  Energy from respiration
• How does active transport function in the human digestive system?

  It absorbs nutrients against a concentration gradient
• What are the three types of transport methods in cells?

  • Diffusion
  • Osmosis
  • Active transport
• What is one molecule taken up by active transport in the gut?

  Glucose
• What is the role of root hairs in plants?

  To increase surface area for absorption
• What is the importance of respiration in active transport?

  It provides the energy needed for transport
• What is the function of active transport in plant roots?

  To absorb minerals from dilute solutions
• How does active transport help plants in nutrient-poor soils?

  It allows them to absorb necessary minerals