Chapters 7 to 8

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Across
  1. 3. qualify the cirrculation that carries blood from the heart to all of the body except the gas exchange surface, and then back to the heart.
  2. 8. the stage of the cardiac cycle when the muscle in the walls of the heart relaxees.
  3. 12. a pore in the epidermis of a leaf.
  4. 13. basic plant tissue used as packing tissue
  5. 15. the main material in wood
  6. 18. plant tissue responsible for the transport of assimilates
  7. 19. Term referring to tubes or vessels
  8. 20. small artery
  9. 22. the non-living system of interconnected cell walls extending throughout a plant.
Down
  1. 1. a plant adapted to survicve in dry conditions.
  2. 2. the decrease of affinityof haemoglobin for oxygen when carbon dioxide is present
  3. 4. tissue lining the inner surface of a structure such as blood vessel.
  4. 5. qualifies the shift
  5. 6. vessel that carries low-pressure blood back to the heart.
  6. 7. qualify the valves in the veins.
  7. 9. layer of tissue separating the left from the right sides of the heart.
  8. 10. the narrowing of an arteriole.
  9. 11. a site in a plant which received food from another part of the plant.
  10. 14. layer of cells surrounding the vascular tissue of plants
  11. 16. qualifies the curve showing the percentage saturation of haemoglobin with oxygen, plotted against the partial pressure of oxygen.
  12. 17. the liquid componenet of blood.
  13. 21. plant tissue responsible for transport of water and minerals