SVA Unit 1 Biology Vocabulary

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Across
  1. 4. substance formed by the chemical combination of two or more elements in definite proportions.
  2. 6. type of mixture in which all components are all evenly distributed.
  3. 7. change over time.
  4. 9. slight attraction between substances of the same substance.
  5. 10. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorous.
  6. 14. attraction between molecules of the same substance.
  7. 18. one of the several forces of a single element, which contains the same number of protons but different number of neutrons.
  8. 20. protein catalysts that speeds up the reactions of specific biological reactions.
  9. 21. chemical bond formed when one or more electrons are transferred from one atom to another.
  10. 22. particular preference or point of view that is personal rather than scientific.
  11. 24. macromolecules that contains carbon, hydrogen, oxygen, and nitrogen needed for the body’s growth and repair.
  12. 25. input that is needed for a reaction to begin.
  13. 28. pure substance that consists entirely of one type of atom.
  14. 29. genetic material that organisms inherit from their parents.
  15. 30. scale with the vales from 0-14 used to measure the content of H+ ions in solution.
  16. 32. type of bond between atoms in which the electrons are shared.
  17. 33. signals to which an organism responds.
  18. 36. elements or compounds that enter into a chemical reaction.
  19. 38. molecules composed of many monomers, makes up macromolecules.
  20. 40. negatively charged particle, located in the space surrounding the nucleus.
  21. 41. materials composed of two or more elements or compounds that are physically mixed but not chemically combined.
  22. 43. variable that is observed and that changes in response to the independent variable also called responding variable.
  23. 44. compounds that prevent sudden changes in pH.
  24. 45. the combination of chemical reactions through which an organism holds or breaks down materials.
  25. 46. the center of an atom, which contains the protons and the neutrons.
  26. 47. scientific study of life
  27. 48. compound that forms hydrogen ions (H+) in solutions.
  28. 50. relative constant internal physical and chemical conditions that organisms obtain.
  29. 51. substance that speeds up the rate of a chemical reaction.
  30. 52. dissolving substance in a solution.
  31. 53. factor in a controlled experiment that is deliberately changed is also called a manipulated variable.
  32. 54. possible explanation for a set of observations or possible answers to scientific question.
Down
  1. 1. experiment in which only one variable is changed.
  2. 2. force or attraction between different kinds of molecules.
  3. 3. elements or compounds produced from a chemical reaction.
  4. 5. mixture of water and non-dissolved material.
  5. 8. compound made up of carbon, hydrogen, and oxygen atoms types of molecules which are a major source of energy to the body.
  6. 11. process of reproduction involving a single parent that results in offspring that are genetically identical to the parent.
  7. 12. small chemical units that make up polymers.
  8. 13. process that changes or transforms one set of chemicals into another group of chemicals.
  9. 15. substance that is dissolved into a solution.
  10. 16. compounds with an amino group on one end and a carboxyl group on the other end.
  11. 17. type of reproduction in which two cells from two parents unite to form the first cell of a new organism.
  12. 19. reactant of an enzyme catalyzed reaction.
  13. 23. smallest unit of most compounds that display all the properties of that compound.
  14. 26. well tested explanation that unifies a broad range of observations and hypotheses, enabling scientists to make accurate predictions about new situations.
  15. 27. a logical interpretation based on prior knowledge or experience.
  16. 31. the basic unit of measure, the building blocks of life.
  17. 34. evidence and information gathered from observations.
  18. 35. macromolecules made mostly from carbon and hydrogen atoms includes fats, oils, and waxes.
  19. 37. subunit of which nucleic acids are composed.
  20. 39. atom that has positive or negative charge.
  21. 42. process of noticing and describing evets or processes in a careful orderly way.
  22. 44. compounds that produce hydroxide ions (OH-) in solution.
  23. 49. group in an experiment that is exposed to the same conditions as the experimental group except for the one independent variable.