Biology Exam 1

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Across
  1. 1. Level of protein that is not required
  2. 7. Material the cell wall is made of
  3. 8. Acronym for the 4 types of nucleotides in DNA
  4. 11. Acronym for the elements that make up 96% of living material
  5. 13. Smaller type of cell
  6. 15. Type of cell that has a cell wall
  7. 16. 3.5 _____ years ago dates the fossils of prokaryotic cells
  8. 17. Protein making machines
  9. 21. Contains DNA in eukaryotic cells
  10. 23. Step after making observations in the scientific method
  11. 25. First of the three levels of carbohydrates
  12. 26. How prokaryotes divide into two daughter cells (use a dash between words)
Down
  1. 2. Type of cell that can produce sexually and asexually
  2. 3. Organelle in animal cells that contains it's own DNA
  3. 4. composed of glycerol and fatty acids, but also contain a negatively-charged phosphate group
  4. 5. Polysaccharide that is used in storage material in animals
  5. 6. the building blocks of polypeptides (use dash in between words)
  6. 9. Trace element found in the thyroid
  7. 10. Acronym for the 4 types of nucleotides in RNA
  8. 12. Organelle in PLANT cells that contains it's own DNA
  9. 14. steroid in animals that is synthesized in the liver
  10. 18. How many chromosomes are in a prokaryotic cell
  11. 19. found in insect exoskeletons and Fungi cell walls
  12. 20. the cells currency
  13. 22. fill in the blank. Proteins, _______, Carbohydrates, Amino Acids
  14. 24. Trace element found in blood