Across
- 3. The region that holds the chromosomes of a prokaryotic cell.
- 6. A reletively rigid structure that surrounds cells of plants, fungi, many protists, and most prokaryotes, and which gives these cells their shape
- 8. Structures that link prokaryote cells at the beginning of conjugation.
- 9. A system of concentrically folded membranes found in the cytoplasm of eukaryotic cells.
- 11. Are a family of organelles in plant cells that contain a circular chromosome and can differentiate into various types, including chloroplasts, and chromoplasts.
- 12. Energy-generating organelles in eukaryotic cells that contain the enzymes of the citric acid cycle, the respiratory chain, and oxidative phosphorylation.
- 14. In cells, the centrally located compartment of eukaryotic cells that’s bounded by a double membrane and contains the chromosomes.
- 16. Membrane-enclosed organelles in plant cells that can function for storage, water concentration for turgor, or hydrolysis of stored macromolecules.
- 17. The portion of the endoplasmic reticulum whose outer surface has attached ribosomes.
- 18. Long, whiplike appendages that propel cells.
Down
- 1. The network of microtubules and microfilaments that gives a eukaryotic cell its shape and its capacity to arrange its organelles and to move.
- 2. The portion of the endoplasmic reticulum that lacks ribosomes and has a tubular appearance.
- 4. The contents of the cell, excluding the nucleus.
- 5. Organelles that house reactions in which toxic peroxides are formed and then converted to water.
- 7. Plant organelles in which stored lipids are converted to carbohydrates.
- 10. Small particles in the cell that’s the location of protein synthesis.
- 13. Hairlike organelles used for locomotion by many unicellular organisms and for moving water and mucus by many multicellular organisms.
- 15. A membrane-bound cell organelle that contains digestive enzymes. They break down excess or worn-out cell parts and may even be used to destroy invading viruses and bacteria.