Across
- 3. Sum of the masses of its protons and neutrons in an atom. (Marieb, 2013, p.27)
- 6. Group of chemical substances including certain hormones and cholesterol; they are fat soluble and contain little oxygen.(Marieb, 2013,p.47)
- 10. Bond joining the amine group of one amino acid to the acid carboxyl group of a second amino acid with the loss of a water molecule. (Marieb, 2013, p.47)
- 12. composition is dissimilar in different areas of the mixture. (Marieb, 2013, p.29)
- 13. Control centre of a cell that contains genetic material and clusters of nerve cell bodies in the CN. (Marieb, 2013, p.25)
- 15. Process that occurs before cell division; ensures that all daughter cells have identical genes. (Marieb, 2013, p.53)
- 19. Organic compound composed of carbon, oxygen, hydrogen, and nitrogen; types include enzymes, structural components.(Marieb,2013,p.47)
- 20. The building blocks of proteins. . (Marieb, 2013, p.47)
- 23. are substances composed of two or more components physically intermixed. (Marieb, 2013, p.29)
- 24. Compact,spherical protein that have at least tertiary structure.(Marieb, 2013, p.150)
- 26. substances present in smaller amounts (Marieb, 2013, p.29)
- 27. One of a limited number of unique varieties of matter that composes substances of all kinds. (Marieb, 2013, p.25)
- 30. an average of the relative weight of all isotopes of an element taking into account their relative weights (Marieb, 2013, p.28)
- 33. electrically balanced molecules.
- 34. A chemical bond between atoms formed by the transfer of one or more electrons from one atom to the other. (Marieb, 2013, p.32)
- 37. A substance capable of binding with hydrogen ions; a proton acceptor. . (Marieb, 2013, p.39)
- 39. Isotope that exhibits radioactive behaviour. (Marieb, 2013, p.28)
- 40. the smallest particle of an elemental substance that exhibits the properties of that element; composed of protons, neutrons, and electrons. (Marieb, 2013, p.25)
- 41. anything that occupies space and has mass. (Marieb, 2013, p.24)
- 42. Energy stored in the bonds of chemical substances. (Marieb, 2013, p.24)
- 43. Class of organic molecules that includes DNA and RNA. (Marieb, 2013, p.53)
- 44. A substance of high molecular weight with long, chain-like molecules consisting of many similar (repeated) units. (Marieb, 2013, p.42)
- 45. Organic molecule that stores and releases chemical energy for use in body cells. (Marieb, 2013, p.55)
- 46. Nucleic acid that contains ribose and the bases A, G, C, and U. Carries out DNA’s instructions for protein synthesis. . (Marieb, 2013, p.53)
- 47. heterogeneous mixtures with large, often visible solutes that tend to settle out. (Marieb, 2013, p.30)
- 49. Energy formed by the movement of charged particles across cell membranes. (Marieb, 2013, p.24)
Down
- 1. Subatomic particle that bears a positive charge; located in the atomic nucleus. (Marieb, 2013, p.25)
- 2. is energy in action. (Marieb, 2013, p.24)
- 4. mixture that has exactly the same composition or makeup throughout. (Marieb, 2013, p.29)
- 5. Regions of space that consecutively surround the nucleus of an atom. (Marieb,2013,p.31)
- 7. energy that travels in waves. (Marieb, 2013, p.24)
- 8. A reactant on which an enzyme acts to cause a chemical action to proceed. (Marieb, 2013, p.52)
- 9. the amount of energy required to push a reactant to the level necessary for action. . (Marieb, 2013, p.52)
- 11. A chemical reaction in which larger, more complex atoms or molecules are formed from simpler ones.(Marieb, 2013, p.36)
- 14. Process in which molecules are formed, changed, or broken down.(Marieb, 2013, p.35)
- 16. 29. Chemical bond An energy relationship holding atoms together; involves the interaction of electrons.(Marieb,2013,p.52)
- 17. a nucleic acid found in all living cells; it carries the organism’s hereditary information. (Marieb, 2013, p.53)
- 18. This is equal to its atomic weight or its molecular weight measured in grams. (Marieb, 2013, p.29)
- 21. reactions that are decomposition reaction in that they are the basis of all reactions in which food fuels are broken down for energy.(Marieb, 2013, p.36)
- 22. The number of protons in an atom. (Marieb, 2013, p.27)
- 25. Energy The energy directly involved in moving matter; e.g., in bicycle riding, the legs provide the mechanical energy that moves the pedals. (Marieb, 2013, p.24)
- 26. the substance present in the greatest amount. (Marieb, 2013, p.29)
- 28. Particle consisting of two or more atoms joined together by chemical bonds. (Marieb, 2013, p.28)
- 29. the study of the chemical composition and reactions of living matter. (Marieb, 2013, p.38)
- 31. Different atomic forms of the same element, which vary only in the number of neutrons they contain; the heavier species tend to be radioactive. (Marieb, 2013, p.27)
- 32. Non-symmetrical molecules that contain electrically unbalanced atoms.(Marieb, 2013, p.34)
- 35. stored energy, that is, inactive energy that has the potential, or capability, to do work but is not presently doing so. (Marieb, 2013, p.24)
- 36. A way to express the concentration of a solution; moles per litre of solution. (Marieb, 2013, p.29)
- 38. The capacity to do work, or to put matter into motion. (Marieb, 2013, p.24)
- 45. A substance that releases hydrogen ions when in solution; a proton donor. (Marieb, 2013, p.39)
- 48. Displacement reaction in which mixing an acid and a base forms water and a salt. . (Marieb, 2013, p.41)