1.1 Introduction to Cells

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Across
  1. 3. metric prefix 1 × 10-9.
  2. 4. lens 2 words. the part of the microscope that gathers light from the specimen and focuses it to produce a real image.
  3. 6. metric prefix 1 × 10-3.
  4. 8. the process in which an organism regulates activities within cells and their bodies to keep conditions stable.
  5. 10. metric prefix 1 × 10-6.
  6. 11. a property of a system that emerges from the interaction of the elements of the system.
  7. 17. an approach to science that holds that a complex system can be best understood as the sum of its parts, and that variables can be studied in isolation.
  8. 20. the alteration of a cell's morphology and physiology through changes in gene expression.
  9. 21. a group of cells with a common function and structure.
  10. 22. in behavioural science, the behaviour that is the consequence of a stimulus.
  11. 23. an increase in physical size.
Down
  1. 1. 2 words. a means of visually indicating the actual size of an image.
  2. 2. 2 words. a relatively undifferentiated cell that can give rise to other types of cells and retains the ability to divide.
  3. 5. 2 words. theory that states that all organisms are composed of cells, and that all cells come from pre-existing cells.
  4. 7. focus dial used to initially focus a light microscope on a specimen.
  5. 9. a degenerative eye disease that has been the target of stem cell research.
  6. 12. ratio of image size to actual size.
  7. 13. 5 words. a variable that decreases as cells grow, so that it sets a limit to the size of cells.
  8. 14. the sum of all of the chemical reactions that occur within an organism or within a cell.
  9. 15. a level of organization that emerges due to the interaction of elements.
  10. 16. genus of single-celled ciliated organisms.
  11. 18. metric prefix 1/100th or 1 × 10-2.
  12. 19. 2 words. the synthesis of a functional gene product, often protein, but also rRNA, tRNA, or snRNA.