Biology

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Across
  1. 2. Atoms of the same number that differ in number of neutrons
  2. 3. a process that changes, transforms one set of compounds to another
  3. 5. the use of evidence to construct explanations and predictions of natural phenomenons as well as the knowledge generated from this process
  4. 6. science employs the scientific method to study living things
  5. 12. formed form when one or more electrons is transferred with another atom
  6. 15. a substance that speeds up the rate of a reaction without being consumed by the reaction
  7. 16. compound that produces hydrogen ions in a solution
  8. 17. Scale to indicate the concentration of H plus ions in a solution
  9. 21. compounds with an amino group on one side and a carboxyl on the other
  10. 22. is a constant set of conditions an organism needs to survive
  11. 27. to change over time
  12. 28. positive and negative charged atoms
  13. 31. the variable that is deliberately changed
  14. 32. a compound that releases hydrogen ions into a solution
  15. 33. a small chemical unit that makes up a polymer
  16. 35. The new organism has a single parent
  17. 40. combination of chemical reactions as it carries out its life processes
  18. 41. The reactants of enzyme catalyzed reactions
  19. 42. the substance that is dissolved
  20. 44. a material composed of two or more elements or compounds that are physically mixed together but not chemically combined.
  21. 45. Energy needed to get a reaction started
  22. 46. a signal to which an organism responds
  23. 48. a logical interpretation based on what scientist already know
  24. 49. The variable that is observed and changes as a response of the independent variable
  25. 51. biological catalysts that are usually proteins
  26. 52. basic unit of all matter
Down
  1. 1. the substance in which the solute is dissolved
  2. 4. monomers that consists of 5 carbon sugar, a phosphate group and a nitrogenous base
  3. 6. weak acids that reacts with strong acids to prevent sharp sudden changes in pH
  4. 7. macromolecules containing nitrogen, carbon, hydrogen, and oxygen
  5. 8. polymers assembled by nucleotides
  6. 9. the attraction between molecules of a different substance
  7. 10. involves observing and asking questions, forming hypotheses, conducting controlled experiments, collecting and analyzing data, and drawing conclusions
  8. 11. is a personal, rather than scientific, point of view for, or against something
  9. 13. compound made up of carbon, oxygen and hydrogen
  10. 14. molecules slightly attracted to oppositely charged regions nearby
  11. 18. bond- Formed from when one or more electrons is shared between another atoms
  12. 19. substance formed by chemical reaction of 2 or more elements in definite proportions
  13. 20. a mixture when all the components are distributed evenly
  14. 23. mixture of water and nondissolved material
  15. 24. are descriptive and involves characteristics that can not usually be measured\
  16. 25. made up of many monomers to build a macromolecule
  17. 26. numbers obtained by counting or measuring
  18. 29. Cells from 2 parents unite to produce the first cell of a new organism
  19. 30. The elements or compounds produced by a chemical reaction
  20. 34. a tentative scientific explanation that can be tested by further observation or experimentation
  21. 36. large vary groups of macromolecules which are generally not soluble in water
  22. 37. The elements or compounds that engage in a chemical reaction
  23. 38. structure that contains cells genetic material in form of DNA
  24. 39. changing factors as a result of a hypothesis rejection
  25. 43. This genetic code, with a few minor variations, determines the inherited traits of every organism on Earth.
  26. 47. the act of noticing and describing events or process in a carefully orderly way
  27. 50. is a pure substance that consists of entirely of one type of atom