Y9 Summer Exam Challenge 2023

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Across
  1. 2. plant cell that takes in water and minerals from the soil
  2. 5. the tissue that covers the surface of the leaf
  3. 7. a mineral salt/ion needed by plants to make proteins
  4. 8. can take any value in a range
  5. 11. growth of a seedling from a seed
  6. 13. chemicals for killing weeds
  7. 15. a substance that takes part in a chemical reaction
  8. 16. the process plants use to make their own food
  9. 19. one of a pair of cells that control opening and closing of stomata
  10. 20. when organisms both need the same things, this happens
  11. 23. spreading out of particles in gas or liquid
  12. 25. tiny holes in the leaf surface to allow gases to diffuse in and out of the leaf
  13. 29. chemicals for killing fungi that will cause plant disease
  14. 31. a change in the characteristics of a population over a long time
  15. 33. the surroundings of an organism
  16. 34. can only be one of a limited set of options
  17. 35. the leaf tissue/cell where most photosynthesis takes place
  18. 36. a store of seeds, gametes or tissue samples from different organisms
  19. 37. made from a long DNA molecule, found in the nucleus
  20. 38. passed to an offspring from its parents
  21. 39. if this is large, it helps cells take in materials quickly
  22. 40. reproduction between two organisms to try and get offspring with both their features
  23. 43. humans choosing an organism for breeding based on a desirable feature, trying to produce offspring with more of that feature
  24. 45. rise in the Earth’s surface temperature caused by increased amounts of greenhouse gases, such as carbon dioxide, in the atmosphere
Down
  1. 1. differences between organisms
  2. 3. that requires oxygen
  3. 4. sorting organisms into groups
  4. 6. the chemical in plants that traps sunlight for photosynthesis
  5. 9. a feature that helps an organism survive in its habitat
  6. 10. chemicals that kill insect pests
  7. 12. fats and oils belong to this type of food molecule
  8. 14. plant tissue that transports water and minerals up the stem
  9. 17. carbohydrate used to make plant cell walls
  10. 18. a variable that stops the rate of a reaction getting faster
  11. 19. a cell used for reproduction
  12. 21. chemicals for killing organisms that damage crops
  13. 22. the range of different species in an area
  14. 24. the sugar that is made by photosynthesis
  15. 26. chemicals added to plants to help them grow better
  16. 27. a group of organisms that can reproduce with each other to produce fertile offspring
  17. 28. fertilised egg cell
  18. 30. the part of the plant cell where photosynthesis happens
  19. 32. when an organism survives because its features suit its habitat – it can then reproduce and pass on these features
  20. 36. a length of DNA containing instructions for a characteristic
  21. 41. carbohydrate found in plants – used as a store of glucose from pohotosynthesis
  22. 42. plant tissue that transports dissolved sugars around the plant
  23. 44. short for deoxyribonucleic acid