Cells (2)

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Across
  1. 1. fat cells ___ fat
  2. 9. tissue made up of xylem and phloem cells
  3. 11. the absence of a ___ in the red blood cell allows more haemoglobin to be packed into it
  4. 12. ___ cells carry messages (nerve impulses) around the body
  5. 13. guard cells change their shape to regulate the size of the ___ to reduce water loss from the plant
  6. 14. white blood cells can change their ___ as they squeeze through narrow capillaries to take in and digest harmful bacteria
  7. 16. the shape of the root hair cell increases the surface area to volume ratio of the cell so water and dissolved mineral salts can be absorbed at a ___ rate from the soil
  8. 17. red blood cells transport ___ to all parts of body with the help of haemoglobin
  9. 19. the red pigment in red blood cells which help in oxygen transport
  10. 23. tissue that protects a plant against injury, prevents water loss and inner parts of plants from drying up
  11. 27. cells that provide mechanical support for the plant
  12. 28. system made up of the nose, trachea, bronchi, lungs responsible for the exchange of gases between the organism and surroundings
  13. 30. animal organ responsible for blood circulation
  14. 31. root hair cells absorb dissolved ___ salts and water from the soil
  15. 35. plant organ responsible for absorbing water and dissolved minerals salts from soil and anchoring plant to the ground
  16. 37. the process by which an unspecialized cell becomes specialized into one of the many cells that perform specific function e.g. heart, liver, or muscle cell
  17. 38. the blood circulatory system made up of the heart, ___ and vein transports food substances, oxygen, excretory products etc around the body
Down
  1. 2. tissue that is made up of layers of cells protecting structures beneath it or covering organ surfaces e.g. secreting digestive juices in inner lining of digestive tract
  2. 3. flowers are plant organs responsible for ___
  3. 4. these cells cause body movement through contraction and relaxation
  4. 5. the heart is a ___ pump made up of epithelial, connective, muscle and nerve tissues
  5. 6. ___ cells refer to different types of cells having different shapes and sizes and which perform different functions to keep the organism alive
  6. 7. plant organ responsible for photosynthesis
  7. 8. animal organ made up of epithelial, connective and nerve and controls various parts of the body
  8. 10. a group of similar cells performing similar function
  9. 15. root hair cells are long and narrow or ___
  10. 18. ___ cells are involved in reproduction by fusing with egg cells
  11. 20. the shape of a red blood cell is circular ___
  12. 21. white blood cells ___ the body against infectious diseases
  13. 22. tissue that supports and binds other tissues together
  14. 24. different organs working together to do a particular job
  15. 25. plant system made up of leaves, stem, roots for carrying water and minerals salts to different parts of the plant
  16. 26. plant organ responsible for transport of water from roots to leaves, carrying food from leaves to other parts and giving support to the plant
  17. 29. cells that carry food from green parts of plants e.g leaves to other parts of the plant
  18. 32. the shape of the red blood cell ___ the surface area to volume ratio of the cell thus allows oxygen to diffuse in and out of the red blood cell at a faster rate
  19. 33. guard cells control ___ exchange and water loss in a plant
  20. 34. xylem cells carry water and dissolved mineral salts from the ___ to the stems and leaves
  21. 36. specialised structure made up of different types of tissues working together to carry out complex functions