Across
- 2. consistent physical and chemical conditions maintained by the cell
- 4. cycle that generates high-energy sugars
- 8. solution with a PH of more than 7
- 9. solution with a greater concentration of solutes
- 11. compound used by cells to store and release energy
- 15. attraction between the molecules of different substances
- 18. organelle that breaks down materials into useable molecules
- 20. substance that is dissolved in a solution
- 21. basic unit of all forms of life
- 22. organism whose cells contain a nucleus
- 26. organelle that converts energy stored in food into energy useable by the cell
- 29. diffusion of water through a selectively permeable membrane
- 31. primary pigment used by plants and other photosynthetic organisms
- 32. process by which particles move from areas of higher to lower concentration
- 34. solution with a PH of less than 7
- 35. attraction between molecules of the same substance
- 37. water channel protein in a cell
- 38. elements or compounds that enter into a chemical reaction
- 39. element that contains different numbers of neutrons
- 40. basic unit of matter
- 41. substance formed by the combination of two or more atoms
- 43. network of protein filaments that give the cell its structure
- 44. place where lipid components of the membrane are assembled
- 45. fluid portion of the cell outside of the nucleus
- 47. thin, flexible barrier that surrounds all cells
- 49. group of cells that perform a similar function
- 50. protein catalyst that speeds up biological reactions
- 51. light-absorbing molecules used by plants to gather the sun's energy
Down
- 1. sac-like photosynthetic membranes found in chloroplasts
- 3. product of an enzyme-influenced reaction
- 5. organelle that stores material
- 6. compound that prevents sharp, sudden changes in PH
- 7. solution with a lesser concentration of solutes
- 10. type of mixture in which all components are evenly distributed
- 12. pure substance of only one type of atom
- 13. protein whose shape fits a specific molecular messenger
- 14. dissolving substance in a solution
- 16. structure that contains the cell's genetic information
- 17. smallest unit of most compounds
- 19. protein on the thylakoid membrane that allows H+ atoms to pass through
- 23. unicellular organism that lacks a nucleus
- 24. process used by autotrophs to capture light energy and use it for power
- 25. fluid portion of the chloroplast
- 27. atom that has a positive or negative charge
- 28. negatively charged particle
- 30. group of tissues that work together to perform similar functions
- 33. solution with equal concentration
- 36. cluster of chlorophyll and proteins found in thylakoids
- 42. specialized structure in a eukaryotic cell
- 46. material composed of two or more types of atoms that are not chemically combined
- 48. organelle, the site of protein synthesis