Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What is active transport?
   • Active transport is a process that moves substances from a more dilute solution to a more concentrated solution (against a concentration gradient).
2. Does active transport require energy?
   • Active transport requires Energy from respiration.
3. How does active transport allow plants to absorb esstential ions from soil?
   • Active transport allows mineral ions to be absorbed into plant root hairs from very dilute solutions in the soil.
4. Why do plants require ions from the soil?
   • Plants require ions for healthy growth.
5. How does active transport allow sugar to move from the gut into the blood when it has a higher sugar concentration?
   • Active transport also allows sugar molecules to be absorbed from lower concentrations in the gut into the blood which has a higher sugar concentration.
6. Why is sugar esstential to cells of living things?
   • Sugar is esstential to Cells of living things as it is used for Cell respiration
7. What are the three ways that substances can enter and leave cells?
   • Diffusion, osmosis and active transport.
8. What are the differences between diffusion, osmosis and active transport?
   • Diffusion is the spreading out of Particles down a concentration gradient with/without a partially permeable membrane. Osmosis is the movement of water from an area of high concentration to a low concentration solution across a partially permeable membrane. Active transport is the movement of ions in solution across a partially permeable membrane through carrier proteins, this requires Energy