Biochemistry crossword puzzle answersheet

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Across
  1. 1. is formed when two monosaccharides are joined by dehydration synthesis (page 43)
  2. 4. Many chemical reactions in nonliving systems can be speeded up simply by heating, but drastic increases in body temperature are life threatening because important bio- logical molecules are destroyed (page 38)
  3. 7. chemically combined with other atoms. Such a combination of two or more atoms held together by chemical bonds is called a (page 28)
  4. 9. heterogeneous mixtures, which means that their composition is dissimilar in different areas of the mixture. (page 30)
  5. 10. energy results from the movement of charged particles. (page24)
  6. 13. number an atom is the sum of the masses of its protons and neutrons. The mass of the electrons is so small that it is ignored.(page27)
  7. 14. heterogeneous mixtures with large, often visible solutes that tend to settle out.(page30)
  8. 19. many metals, and “burn” a hole in your rug.It is s a substance that releases hydrogen ions (H1) in detectable amounts. (Page 39)
  9. 20. diverse lipids chiefly de- rived from a 20-carbon fatty acid (arachidonic acid) found in all cell membranes. (Page 47)
  10. 24. ion an important base in the body, is particularly abundant in blood. (Page 40)
  11. 26. reactions These reactions yield products with less energy than the initial reactants, along with energy that can be harvested for other uses. (Page 37)
  12. 27. bonds is a chemical bond between atoms formed by the transfer of one or more electrons from one atom to the other. (Page 32)
  13. 28. are chainlike molecules made of many similar or repeating units (page 42)
  14. 30. unique substances that cannot be broken down into simpler substances by ordinary chemical methods. (page25)
  15. 31. globular proteins that act as biological catalysts. Catalysts are substances that regulate and accelerate the rate of biochemical reactions but are not used up or changed in those reactions (page 51)
  16. 33. have a bitter taste, feel slippery, and are proton acceptors that is, they take up hydrogen ions (H1) in detectable amounts. (Page 29)
  17. 35. homogeneous mixtures of components that may be gases, liquids, or solids. (page29)
  18. 38. They react with each other in displacement reactions to form water and a salt. (Page 40)
  19. 39. energy is energy in action. ( page24)
  20. 40. polymers of simple sugars linked together by dehydration synthesis. (Page 43)
  21. 42. Chemical reactions progress most rapidly when the reacting particles are present in high numbers, because the chance of successful collisions is greater. (Page 37)
  22. 45. regions around the nucleus in which a given electron or electron pair is likely to be found most of the time. (page26
  23. 46. polar Molecules shared electrons are shared equally between the atoms of the molecule for the most part. The molecules formed are electrically balanced and are called (page 33-34)
  24. 47. when two or more different kinds of atoms bind, they form molecules . (page 28)
  25. 48. Compounds contain carbon, are covalently bonded molecules, and many are large. (Page 38)
  26. 49. are modified triglycerides. Specifically, they are di-glycerides with a phosphorus-containing group and two, rather than three, fatty acid chains
Down
  1. 2. energy form stored in the bonds of chemical substances.(page 24)
  2. 3. a group of molecules that includes sugars and starches, represent 1–2% of cell mass. (page 43)
  3. 5. weight an average of the relative weights of all the isotopes of an element, taking into account their relative abundance in nature.(page28)
  4. 6. reaction reaction occurs when a molecule is broken down into smaller molecules or its constituent atoms (page 36)
  5. 8. the capacity to do work, or to put matter into motion.(page 24)
  6. 10. shell Electrons forming the electron cloud around the nucleus of an atom occupy regions of space called ( page 31
  7. 11. Number any atom is equal to the number of protons in its nucleus and is written as a subscript to the left of its atomic symbol. (page27)
  8. 12. Level It is important to understand that each electron shell represents a different (page 31)
  9. 13. are single-chain or single-ring structures containing from three to seven carbon atoms (page 43)
  10. 15. energy is energy that travels in waves. (page24)
  11. 16. anything that occupies space and has mass. With some exceptions, it can be seen, smelled, and felt. (page24)
  12. 17. tale elements contributing to body mass and gives their importance, an oddly shaped checkerboard called the (page25)
  13. 18. energy is stored energy, that is, inactive energy that has the capability, to do work but is not presently doing so. (page24)
  14. 21. Homeostasis of acid-base balance is carefully regulated by the kidneys and lungs and by chemical systems (proteins and other types of molecules) (page 41)
  15. 22. most abundant and important inorganic com- pound in living material. It makes up 60–80% of the volume of most living cells. (Page 38)
  16. 23. Each element is composed of more or less identical particles or building blocks, called (page25)
  17. 25. is the study of the chemical composition and reactions of living matter. (Page 38)
  18. 29. energy is energy directly involved in mov- ing matter. ( page24)
  19. 32. are insoluble in water but dissolve readily in other lipids and in organic solvents such as alcohol and ether. (Page 43)
  20. 34. is an ionic compound containing cations other than H1 and anions other than the hydroxyl ion (page 39)
  21. 36. reaction involve both synthesis and decomposition. Bonds are both made and broken (page36)
  22. 37. 47)
  23. 41. By forming a resilient cushion around certain body organs, water helps protect them from physical trauma. (Page 38)
  24. 43. reactions reactions are decomposition reactions in that they are the basis of all reactions in which food fuels are broken down for energy (that is, in which ATP is produced). (Page 36)
  25. 44. called neutral fats, are commonly known as fats when solid or oils when liquid. (Page 45)