B2.6 Active Transport

• How does active transport differ from diffusion?

  Active transport moves molecules against concentration gradient
• What is diffusion?

  Movement down concentration gradient
• Why is diffusion considered a passive process?

  It doesn't require energy from the cell
• What analogy is used to describe diffusion?

  Like water flowing downhill
• What is active transport compared to?

  Like water moving uphill
• What does active transport require to occur?

  Energy from the cell
• Where does the energy for active transport come from?

  Cellular respiration in mitochondria
• What molecule stores energy for active transport?

  ATP
• How is active transport defined?

  Movement from lower to higher concentration requiring energy
• Why do plants need to absorb water and mineral ions?

  To survive and grow
• What are root hair cells adapted for?

  Absorbing water and mineral ions
• How do root hair cells increase their absorption efficiency?

  By having long hair-like protrusions
• Why can't plants absorb minerals by diffusion?

  Minerals are at higher concentration inside the cell
• What is the role of mitochondria in root hair cells?

  To provide energy for active transport
• What are the adaptations of root hair cells for active transport?

  • Long hair-like protrusions for large surface area
  • Numerous mitochondria for energy production
• What is the function of ATP in cells?

  Acts like a battery for energy transfer
• What is the relationship between cellular respiration and active transport?

  Cellular respiration provides energy for active transport
• What do root hair cells absorb from the soil?

  Water and mineral ions
• What minerals do plants need for chlorophyll production?

  Magnesium ions
• What do plants need nitrates for?

  To produce proteins
• What is the main process that occurs in mitochondria?

  Cellular respiration
• What happens to glucose during cellular respiration?

  It is broken down to release energy
• What is the purpose of the learning platform mentioned?

  To watch videos and track progress
• How can students access the lesson for this video?

  By clicking the link in the description
• What is the format of the videos for this subject?

  Arranged in a playlist