biology refresh

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Across
  1. 1. site of cellular respiration in cells
  2. 6. the element always found in proteins and nucleic acids, but rarely in carbs and lipids
  3. 7. all the organelles and fluid between the nucleus and the plasma membrane
  4. 8. cell structure that performs specific functions for the cell
  5. 12. a constant internal environment maintained by cells
  6. 14. animal that finds already dead animals to eat
  7. 15. energy molecule made in the mitochondria
  8. 17. organisms made of more than one cell working together
  9. 22. smallest unit of life
  10. 23. type of bond between nitrogenous bases in DNA
  11. 25. structures in the nucleus made of DNA and proteins
  12. 26. an animal that eats both plants and animals
  13. 27. an animal that hunts other animals
  14. 28. powerhouse of eukaryotic cells
Down
  1. 2. maintain a constant internal environmental changes in external environment
  2. 3. the monomers of proteins
  3. 4. the shape of a DNA molecule
  4. 5. surrounds the outside of all cells
  5. 9. cells like bacteria without a nucleus or membrane bound organelles
  6. 10. long whip like structures found on some cells to help them move
  7. 11. made of RNA and protein and where proteins are made
  8. 13. cells with a true nucleus
  9. 14. ER that makes cholesterol and helps detoxify poisons
  10. 16. an animal that is hunted by other animals
  11. 18. an animal that eats plants
  12. 19. ER with ribosomes attached to its surface
  13. 20. nucleic acid responsible for translating DNA into proteins
  14. 21. a type of protein that lowers the activation energy of reactions so they can happen at body temperature
  15. 24. genetic material found inside the nucleus of a cell
  16. 25. made of cellulose and surrounds outside of plant cells