Biology

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Across
  1. 2. a short, microscopic, hairlike vibrating structure
  2. 5. apparatus a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport
  3. 7. an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes enclosed in a membrane
  4. 9. membrane a microscopic membrane of lipids and proteins that forms the external boundary of the cytoplasm of a cell or encloses a vacuole, and that regulates the passage of molecules in and out of the cytoplasm
  5. 10. any of a number of organized or specialized structures within a living cell
  6. 12. an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur
  7. 14. a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material
  8. 15. a part of an organism that is typically self-contained and has a specific vital function
  9. 16. any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products
  10. 17. any organism whose cells contain a nucleus and other structures enclosed within membranes
  11. 18. reticulum a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane
  12. 19. small dense spherical structure in the nucleus of a cell during interphase
Down
  1. 1. a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells
  2. 3. the material or protoplasm within a living cell, excluding the nucleus
  3. 4. the aqueous component of the cytoplasm of a cell, within which various organelles and particles are suspended
  4. 6. a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles
  5. 8. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes
  6. 11. envelope the double lipid bilayer membrane which surrounds the genetic material and nucleolus in eukaryotic cells
  7. 13. a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence