cells

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Across
  1. 7. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
  2. 9. a single-celled organism of the kingdom Protista, such as a protozoan or simple alga
  3. 11. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants
  4. 12. A membrane transport protein is a membrane protein involved in the movement of ions
  5. 14. Compound microscopes are used to view small samples that can not be identified with the naked eye.
  6. 15. the material of which the chromosomes of organisms other than bacteria
  7. 16. an organism consisting of a cell or cells in which the genetic material is DNA
  8. 17. The CELL THEORY, or cell doctrine, states that all organisms are composed of similar units of organization,
  9. 18. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
  10. 19. the basic membrane-bound unit that contains the fundamental molecules of life.
  11. 20. a microscopic single-celled organism
Down
  1. 1. a plastid that contains chlorophyll and in which photosynthesis takes place.
  2. 2. The endosymbiotic theory states that some of the organelles in eukaryotic cells were once prokaryotic microbes.
  3. 3. An organelle is a sub cellular structure that has one or more specific jobs to perform in the cell
  4. 4. a lipid containing a phosphate group in its molecule
  5. 5. Chlorophyll is a green pigment found in plants
  6. 6. the central and most important part of an object
  7. 8. the action or process of magnifying something
  8. 10. Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell.
  9. 13. the tendency toward a relatively stable equilibrium between interdependent elements