Across
- 3. a substance made from two or more different elements that have been chemically joined(pg.28)
- 5. the basic building blocks of matter(pg.25)
- 9. proton donors(pg.39)
- 11. heterogeneous mixtures with large, often visible solutes that tend to settle out(pg.30)
- 12. elements that have two or more structural variations(pg.27)
- 13. two polynucleotide chains that coil around each other to form a double helix(pg.53)
- 15. the amount of energy needed to break the bonds of the reactants(pg.52)
- 16. a chemical bond between atoms formed by the transfer of one or more electrons from one atom to the other(pg.32)
- 18. the substance on which an enzyme acts(pg.52)
- 19. storage carbohydrate formed by plants(pg.43)
- 22. Also called neutral fats(pg.45)
- 24. the storage carbohydrate of animal tissues(pg.43)
- 26. substances that cannot be broken down into simpler substances by ordinary chemical methods(pg.25)
- 27. a molecule that can react together with other monomer molecules to form a larger polymer chain(pg.42)
- 28. the region of an enzyme where substrate molecules bind and undergo a chemical reaction(pg.50)
- 32. an atom’s outermost energy level or that portion of it containing the electrons that are chemically reactive(pg.31)
- 34. substances composed of two or more components physically intermixed(pg.29)
- 36. a chemical bond that involves the sharing of electrons to form electron pairs between atoms(pg.32)
- 38. heterogeneous mixture in which very small particles of one substance are distributed evenly throughout another substance(pg.29)
- 42. chainlike molecules made of many similar or repeating units(pg.42)
- 44. proton acceptors(pg.39)
- 45. Fatty inorganic compounds that are insoluble in water(pg.43)
- 46. energy that travels in waves(pg.24)
- 47. a negatively charged ion(pg.32)
- 48. the capacity to do work, or to put matter into motion(pg.24)
- 49. ionic compound consisting of an assembly of cations and anions(pg.39)
- 50. The structural units of nucleic acids(pg.53)
Down
- 1. compound lipids, consisting of phosphoric acids, nitrogen base, alcohol and fatty acids(pg.47)
- 2. found in cell membranes and is the raw material for synthesis of vitamin D, steroid hormones, and bile salts(pg.47)
- 4. The building blocks of proteins(pg.47)
- 6. a chemical reaction where atoms or molecules combine to form a larger, more complex molecule(pg.36)
- 7. single-chain or single-ring structures containing from three to seven carbon atoms(pg.43)
- 8. the process of an atom or compound gaining one or more electrons(pg.36)
- 10. chemical reaction that occurs when a molecule is broken down into smaller molecules or its constituent atoms(pg.36)
- 14. the primary energy-transferring molecule in cells and it provides a form of energy that is immediately usable by all body cells(pg.55)
- 17. Univeral solvent(pg.38)
- 20. anything that occupies space and has mass (pg.24)
- 21. Double sugar(pg.43)
- 23. a positively charged ion(pg.32)
- 25. The substance present in the greatest amount(pg.29)
- 29. Biological catalysts(pg.51)
- 30. energy in action(pg.24)
- 31. a sugar molecule consisting of carbon, hydrogen and oxygen atoms(pg.43)
- 33. substances that conduct an electrical current in solution(pg.39)
- 35. homogeneous mixture of one or more solutes dissolved in a solvent(pg.29)
- 37. the mass of an atom(pg.25)
- 39. A chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance(pg.36)
- 40. flat molecules made of four interlocking hydrocarbon rings(pg.47)
- 41. when an acid and a base react to form water and a salt(pg.40)
- 43. substances that increase the rate of chemical reactions without themselves becoming changed or changed or part of the product(pg.38)