Cells
Across
- 3. the smallest unit that can live on its own
- 5. an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus.
- 6. a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles.
- 7. a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria
- 10. a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells.
- 12. the gelatinous liquid that fills the inside of a cell.
- 13. the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
- 15. a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane.
Down
- 1. a slender threadlike structure, especially a microscopic appendage that enables many protozoa, bacteria, spermatozoa
- 2. a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
- 4. an organelle found in large numbers in most cells
- 8. a plastid that contains chlorophyll and in which photosynthesis takes place.
- 9. a subcellular structure that has one or more specific jobs to perform in the cell
- 11. a membrane-bound cell organelle that contains digestive enzymes.
- 14. a short microscopic hairlike vibrating structure found in large numbers on the surface of certain cells
- 16. the semipermeable membrane surrounding the cytoplasm of a cell.