Biology

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Across
  1. 1. are thread-like structures located inside the nucleus of animal and plant cells
  2. 6. any substance that increases the rate of a reaction without itself being consumed
  3. 8. the basic building block of all living things
  4. 10. the process plants and other organisms use to make their own food
  5. 11. the process of absorbing or assimilating substances into cell or across the tissue and organs
  6. 12. are the fundamental units of the brain and nervous system
  7. 13. turning food you eat into nutrients
Down
  1. 1. the natural compound present in green plants that gives them their color
  2. 2. a thick solution that fills each cell and is enclosed by the cell membrane
  3. 3. a medicine that destroys microorganisms
  4. 4. the process of eliminating waste matter
  5. 5. the act or process of breathing
  6. 7. a toxin or foreign substance which induces an innuendo response in the body
  7. 9. wall: a structure layer surrounding some types of cells