GCSE AQA Biology

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Across
  1. 5. Organism that makes its own food, usually by photosynthesis.
  2. 6. Introduction of a dead or inactive pathogen to stimulate immunity.
  3. 7. Process by which plants make glucose using light energy.
  4. 9. Community of organisms interacting with their environment.
  5. 12. Biological catalyst that speeds up chemical reactions.
  6. 13. Chemical messenger produced by glands in the body.
  7. 16. Structure made of DNA that carries genetic information.
  8. 17. Cell division producing two identical daughter cells.
  9. 20. Different form of a gene.
  10. 23. Protein produced by white blood cells to fight pathogens.
  11. 24. Level, Position of an organism in a food chain.
  12. 27. Movement of water molecules through a partially permeable membrane.
  13. 29. Cell division producing gametes with half the number of chromosomes.
  14. 30. Microorganism that causes disease.
Down
  1. 1. Process of releasing energy from glucose.
  2. 2. Transport, Movement of substances against a concentration gradient using energy.
  3. 3. Organism that breaks down dead material for nutrients.
  4. 4. Feature that increases an organism’s chance of survival.
  5. 8. Respiration without oxygen that produc lactic acid or ethanol.
  6. 10. Section of DNA that codes for a protein.
  7. 11. Respiration using oxygen to release energy.
  8. 14. Organism that eats other organisms for energy.
  9. 15. Maintenance of a stable internal environment in an organism.
  10. 18. Hormone that lowers blood glucose levels.
  11. 19. Selection, The process where organisms better adapted to environment survive and reproduce.
  12. 21. Variety of different species in an ecosystem.
  13. 22. Cycle, Movement of carbon through living organisms and the environment.
  14. 25. Movement of particles from an area of high concentration to low concentration.
  15. 26. Group of organisms of the same species living in a habitat.
  16. 28. Change in the DNA sequence of a gene.