Across
- 2. layer of cell wall that is added between the plasma membrane and the primary cell wall
- 5. receptor proteins in plasma membrane that interconnects the extracellular matrix and the cytoskeleton
- 8. motor protein that microfilaments interact with
- 9. made up of glycoproteins such as collagen, proteoglycans, and fibronectin; bind to receptor proteins
- 12. motor protein associated with cilia and flagella
- 13. thin layer between primary walls of adjacent cells
- 15. type of intercellular junction; channels that perforate plant cell walls
- 17. short appendages specialized for locomotion or moving fluid past the cell; occur in large numbers on cell surfaces; power stroke beating pattern
- 18. a structure present in the cytoplasm of animal cells that functions as a "microtubule-organizing center"; contains two centrioles
- 19. layer of cell wall than is relatively thin and flexible; closest to the outside of the cell
Down
- 1. network of fibers extending throughout the cytoplasm; organizes the cell's structures and activities anchoring many organelles; supports the cell and maintains its shape
- 3. another word for microfilaments
- 4. long cellular appendages specialized for locomotion; limited to one or a few per cell; spiral beating pattern
- 6. larger than microfilaments but smaller than microtubules; function is to support cell shape and fix organelles in place
- 7. extracellular structure that distinguishes plant cells from animal cells
- 10. thin solid rods; structural role of beating tension, resisting pulling forces within cell; acting alone or with myosin to cause cell contraction
- 11. functions: shape and support the cell, guide movement of organelles, separate chromosomes during cell division
- 14. a structure in the centrosome of an animal cell composed of a cylinder of microtubule triplets arranged in a "9 + 0" pattern
- 16. microtubule-based organelles; anchors the cilium or flagellum