biology

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Across
  1. 1. The removal of soluble waste materials.
  2. 6. A large vacuole that rests at the center of most plant cells and is filled with a solution that contains a high concentration of solutes.
  3. 9. A pigment necessary for photosynthesis.
  4. 11. main source of energy
  5. 14. Hairlike projections that extend from the plasma membrane and are used for locomotion.
  6. 15. shorter term for spermatozoon; male gamete
  7. 16. Conversion of light energy from the sun into chemical energy.products of photosynthesis are glucose and oxygen
  8. 17. A membrane-bounded "sac" within a cell.
  9. 19. The region of a cell that contains the cell's main DNA. Centre of a cell.
Down
  1. 2. DNA coiled around and supported by proteins, found in the nucleus of the cell.
  2. 3. A rigid structure on the outside of certain cells, usually plant and bacteria cells.
  3. 4. Sets of organs in our bodies that do the work to keep us healthy and alive.
  4. 5. A thin covering of tissue.
  5. 7. An organelle containing chlorophyll for photosynthesis.
  6. 8. Made of thousands of cells, connected by several body systems to do work to keep our bodies healthy & alive.
  7. 10. The tendency of a solvent to travel across a semipermeable membrane into areas of higher solute concentration.
  8. 12. The breakdown of food molecules with a release of energy.
  9. 13. Powerhouse of the cell
  10. 18. Small part of all living things.