Across
- 1. populations living in a defined area
- 3. chemical changes in cell or organism
- 9. diffusion of water
- 11. cells that contain nuclei
- 12. organisms that live in same area
- 16. atoms of same element. difference:#of neutrons
- 17. system organs that perform specific functions
- 18. moving from high to low concentration
- 20. contains cell's genetic material: DNA
- 22. contains sugar ribose
- 25. stores genetic information
- 26. material mixed together but not chemically comb
- 27. any compound that forms H+ions in a solution
- 28. attraction w/molecules of different substance
- 29. factor that stands alone
- 37. amount of solute to solvent in a solution
- 40. contains the sugar deoxyribose
- 43. 2 different parents
- 45. molecules that combine to form proteins
- 46. standard for comparison
- 47. positively and negatively charged atoms
- 50. smallest unit of most compounds
- 51. electrons are moved from atom to atom
- 52. mixtures of water and undissolved material
- 53. monomers join together
- 56. smallest function of life
- 60. balancing all the body systems
- 64. groups of tissues working together
- 66. everything evenly distributed through solution
- 67. changing 1 set of chemicals to anothe
- 68. substance that is dissolved
- 69. single parent
- 71. pure substance with only one type of atom
- 72. weak acids/bases that can react w/strong acids/
- 73. attraction w/molecules of same substance
- 74. individual living thing
- 75. does not use energy
Down
- 1. thin flexible barrier on all cells
- 2. depends on other factors
- 4. membrane inclosed organelle, has chromosomes
- 5. when cells take in liquid
- 6. two solutions are same strength
- 7. pushing material out of cell
- 8. forms when 2 electrons r shared w/atoms
- 10. organized procedure for testing hypothesis
- 13. two solutions, one is below strength
- 14. groups of atoms
- 15. factor that doesn't vary in experiment
- 19. substance that dissolved the solute
- 21. individual monomers that consist of 3 parts
- 23. tissues, organs, and organ systems
- 24. attraction w/positively charged nearb
- 27. basic unit of matter
- 28. uses energy
- 30. concentration of solute is same throughout
- 31. all cells perform different tasks
- 32. diffusion through protein channels
- 33. taking material into the cell
- 34. means "cell eating"
- 35. compound that produces hydroxide ions in solution
- 36. educated guess or testable prediction
- 38. group of similar cells that perform a function
- 39. cells that do not contain nuclei
- 41. two solutions, one is above strength
- 42. negatively charged subatomic particle
- 44. formed by chemical combo: 2 or more elements
- 48. study of living organisms
- 49. some cells have this strong supporting layer
- 54. community + its nonliving surroundings
- 55. contains nitrogen/carbon/hydrogen/oxygen
- 57. double layered sheet in cell membranes
- 58. the smaller units
- 59. compounds made of carbon/hydrogen/oxygen atoms
- 61. single sugar molecules
- 62. big macromolecules formed from monosacc
- 63. system indicating H+ions in a solution
- 65. part of earth containing all ecosystem
- 70. element that enters into a chemical reaction