CELLS

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Across
  1. 2. a specialized part of a cell having some specific function
  2. 4. a specialized usually spherical mass of protoplasm encased in a double membrane, and found in most living eukaryotic cells, directing their growth, metabolism, and reproduction, and functioning in the transmission of genic characters. See illus. under ameba.
  3. 6. a usually microscopic structure containing nuclear and cytoplasmic material
  4. 8. the definite boundary or wall that is part of the outer structure of certain cells, as a plant cell.
  5. 9. an organelle in the cytoplasm of cells that functions in energy production
  6. 10. an organelle, consisting of layers of flattened sacs, that takes up and processes secretory and synthetic products from the endoplasmic reticulum and then either releases the finished products into various parts of the cell cytoplasm or secretes them to the outside of the cell.
  7. 12. the semipermeable membrane enclosing the cytoplasm of a cell.
  8. 15. a cell organelle containing enzymes that digest particles and that disintegrate the cell after its death.
Down
  1. 1. a long lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc.
  2. 3. a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials.
  3. 5. any cellular organism that has no nuclear membrane, no organelles in the cytoplasm except ribosomes, and has its genetic material in the form of single continuous strands forming coils or loops
  4. 7. a plastid containing chlorophyll.
  5. 8. that line the surfaces of certain cells and beat in rhythmic waves, providing locomotion to ciliate protozoans and moving liquids along
  6. 11. the cell substance between the cell membrane and the nucleus, containing the cytosol, organelles, cytoskeleton, and various particles.
  7. 13. any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm, a membrane-bound nucleus enclosing genetic material organized into chromosomes,
  8. 14. a tiny somewhat mitten-shaped organelle occurring in great numbers in the cell cytoplasm either freely, in small clusters, or attached to the outer surfaces of endoplasmic reticula, and functioning as the site of protein manufacture.