Cells

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Across
  1. 3. a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence.
  2. 4. any member of the most important class of pigments involved in photosynthesis
  3. 6. 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.
  4. 9. is a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor
  5. 11. membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.
  6. 12. a membrane-bound organelle which is present in plant and fungal cells and some protist, animal, and bacterial cells
  7. 15. organisms whose cells contain a nucleus and other membrane-bound organelles.
  8. 16. the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
  9. 18. a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
  10. 19. an organelle found in both animal cells and plant cells
Down
  1. 1. any of various cytoplasmic organelles of photosynthetic organisms that serve in many cases as centers of special metabolic activities
  2. 2. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur.
  3. 5. the more fluid, granular inner layer of the cytoplasm in amoeboid cells.
  4. 7. a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division.
  5. 8. the material or protoplasm within a living cell, excluding the nucleus.
  6. 10. a plastid that contains chlorophyll and in which photosynthesis takes place.
  7. 13. cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.
  8. 14. specialized organelles.
  9. 17. a dense organelle present in most
  10. 20. an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cells