Cell Cross Word
Across
- 2. any of a number of organized or specialized structures within a living cell
- 4. the material or protoplasm within a living cell, excluding the nucleus
- 6. a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material
- 9. a space or vesicle within the cytoplasm of a cell enclosed by a membrane and typically containing fluid
- 11. a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins
- 13. The smallest living unit of any organism
- 15. States that all organisms are composed of similar units of organization called cells
- 16. a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles
- 17. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria
- 18. a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane
Down
- 1. a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division
- 3. a biological membrane consisting of two layers of lipid molecules
- 5. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur
- 7. organisms whose cells have a nucleus enclosed within a nuclear envelope
- 8. a membrane allows the passage of some molecules or ions and inhibits the passage of others
- 10. a cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell
- 12. a membrane-bound cell organelle that contains digestive enzymes
- 14. microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence
- 15. the semipermeable coating surrounding the cytoplasm of a cell
- 19. a plastid that contains chlorophyll and in which photosynthesis takes place