Year 8 Biology

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Across
  1. 4. A group of tissues that work together to carry out a specific job
  2. 7. The main plant organ that carries out photosynthesis
  3. 8. The rigid outer layer in plant cells that provides support and shape
  4. 9. The muscle that helps humans inhale and exhale during breathing
  5. 10. A group of organs that work together to perform body functions
  6. 11. The movement of water across a semipermeable membrane
  7. 12. The control centre of the cell that contains DNA
  8. 15. The windpipe that carries air from the mouth to the lungs
  9. 18. Small pores on the underside of leaves that allow gases to move in and out
  10. 19. An organism made up of only one cell
  11. 20. A group of similar cells that work together to perform a function
  12. 21. The plant organ that absorbs water and anchors the plant in the soil
  13. 22. The plant organ that supports the leaves and transports water and nutrients
  14. 23. A large sac in plant cells that stores water and nutrients
  15. 25. The process where glucose reacts with oxygen to release energy
Down
  1. 1. The powerhouse of the cell where energy is released from food
  2. 2. A thin layer that controls what enters and leaves the cell
  3. 3. The jelly-like substance inside a cell where reactions occur
  4. 5. Cells that open and close the stomata to control gas exchange
  5. 6. A simple cell without a nucleus, like bacteria
  6. 8. Organelle in plant cells where photosynthesis takes place
  7. 13. A complex cell with a nucleus, like plant and animal cells
  8. 14. A living thing made up of one or more cells
  9. 16. An organism made up of many cells working together
  10. 17. Tiny air sacs in the lungs where gas exchange occurs
  11. 24. The basic structural and functional unit of all living things