Y9 Biology Crossword

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Across
  1. 5. wave‑like muscle contractions that move food along the gut
  2. 8. tiny pores on leaves that allow gas exchange
  3. 11. vessel that transports water to the leaf for photosynthesis
  4. 12. net movement of particles from a higher to a lower concentration
  5. 13. protective outer layer of cells on a leaf
  6. 15. green pigment that absorbs light energy for photosynthesis
Down
  1. 1. waxy layer that reduces water loss from the leaf surface
  2. 2. leaf layer packed with chloroplasts for maximum light absorption
  3. 3. leaf layer with air spaces to allow diffusion of gases
  4. 4. movement of water from high to low water potential through a membrane
  5. 6. enzyme that breaks down starch into maltose
  6. 7. dioxide gas taken in by plants for photosynthesis
  7. 9. tiny finger‑like structures that increase surface area in the small intestine
  8. 10. structure containing xylem and phloem in a leaf
  9. 14. main sugar product made during photosynthesis