Biology Unit 1

Unit 1 - Keystone Biology Concepts

Basic Biological Principles

Explain the characteristics common to all organisms:

  • Describe the characteristics of life shared by all prokaryotic and eukaryotic organisms.


Describe relationships between structure and function at biological levels of organization:


  • Compare cellular structures and their functions in prokaryotic and eukaryotic cells.


  • Describe and interpret relationships between structure and function at various levels of biological organizations(i.e., organelles, cells, tissues, organs, organ systems, and multicellular organisms)





  1. cell
  2. organelle
  3. organism
  4. tissue
  5. organ system
  6. eukaryote
  7. prokaryote
  8. deoxyribonucleic acid (DNA)
  9. nucleus
  10. extracellular
  11. intracellular
  12. endoplasmic reticulum (ER)
  13. chloroplast
  14. Golgi apparatus
  15. mitochondrion
  16. ribosome
  17. plasma membrane
  18. chromsomes
  19. plastids
  20. biology
  21. species
  22. unicellular
  23. multicellular
  24. organ
  25. system
  26. science
  27. endosymbiosis
  28. sexual reproduction
  29. asexual reproduction

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