Across
- 6. - group of tissues that work together to perform closely related functions
- 7. - cellular process in which substances are brought into the cell
- 10. - type of cellular transport where substances move against a concentration gradient
- 11. - process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated
- 12. system - group of organs that work together to perform a specific function
- 15. - protein filaments in the cytoplasm of eukaryotic cells that form part of the cytoskeleton
- 16. pressure - pressure that must be applied to prevent osmotic movement across a selectively permeable membrane
- 17. - fluid portion of the cell outside the nucleus
- 20. - group of similar cells that perform a particular function
- 21. - basic unit of all forms of life
- 24. - network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement
- 25. - fundamental concept of biology that states that all living things are composed of cells; that cells are the basic units of structure and function in living things; and that new cells are produced from existing cells
- 27. - tubular structured polymers which are found throughout the cytoplasm and forms a component of the cytoskeleton
- 28. - relatively constant internal physical and chemical conditions that organisms maintain
- 29. - on or in a cell, a specific protein to whose shape fits that of a specific molecular messenger, such as a hormone
- 30. permeable - property of cellular membranes that only allows certain molecules to enter or exit the cell.
- 32. - thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell
- 33. - cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can be used by the rest of the cell
- 34. - specialized structure that performs important cellular functions within a eukaryotic cell
- 35. - water channel protein in a cell
Down
- 1. - in cells, structure that contains the cell's genetic material in the form of DNA
- 2. - when comparing two solutions, the solution with the greater concentration of solutes
- 3. - thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell
- 4. - cellular process for ingesting and eliminating particles, including foreign substances, microorganisms, and dead cells/organelles.
- 5. - the uptake of extracellular fluids and dissolved solutes, such as fat droplets, vitamins, and antigens
- 7. - process of moving materials from within a cell to the exterior of the cell
- 8. - when comparing two solutions, the solution with the lesser concentration of solutes
- 9. - flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings
- 13. - when the concentration of two solutions is the same
- 14. - unicellular organism that lacks a nucleus
- 18. - diffusion of water through a selectively permeable membrane
- 19. - bubble-like membranous structure that stores and transports cellular products, and digests metabolic wastes within the cell
- 22. - organism whose cells contain a nucleus
- 23. - process of diffusion in which molecules pass across the membrane through cell membrane channels
- 26. - cell organelle that stores materials such as water, salts, proteins, and carbohydrates
- 31. - strong, supporting layer around the cell membrane in some cells