A&P2

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Author:
TheseFights
ID:
222099
Filename:
A&P2
Updated:
2013-06-02 19:08:42
Tags:
anatomy physiology
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Description:
ch. 2
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  1. The "atomic weight" of an atom reflects the average number of
    protons + neutrons + electrons
  2. Radioisotopes have unstable
    nuclei
  3. By weight, which element is the second most abundant in the human body?
    carbon
  4. The molecule CO2 is known as
    carbon dioxide
  5. When electrons are transferred from one atom to another, and the two atoms unite as a result of the opposite charges,
    an ionic bond is formed.
  6. The molecule O2 is known as
    oxygen
  7. In an aqueous solution, sodium ions would move toward
    a negative terminal.
  8. Ionic bonds are formed when
    an electron or electrons are completely transferred from one atom to another.
  9. Sodium (Na) has an atomic number of 11. How many electrons are in the outer electron shell of a neutral sodium atom?
    1
  10. In hydrolysis reactions, compounds react with
    water, causing decomposition.
  11. In dehydration synthesis reactions, compounds
    lose water molecules.
  12. Compounds that can be synthesized or broken down by chemical reactions inside the body are called
    metabolites.
  13. An example of an inorganic substance is
    water and carbon dioxide.
  14. Which property of water helps keeps body temperature stabilized?
    thermal inertia
  15. A solution containing equal numbers of hydrogen ions and hydroxide ions is
    neutral.
  16. An important buffer in body fluids is
    NaHCO3.
  17. When placed in water, an inorganic compound dissociates 99 percent, forming hydrogen ions and anions. This compound would be
    a strong acid.
  18. A polysaccharide that is formed in liver and muscle cells to store glucose is
    glycogen
  19. An example of an organic substance is:
    sucrose
  20. A fatty acid that contains two or more double covalent bonds is said to be
    polyunsaturated.
  21. Lipids that are produced by nearly every tissue in the body and act as local regulators are the
    prostaglandins.
  22. Substrate molecules bind to enzymes at the ________ sites.
    active
  23. Each amino acid differs from another in the
    nature of the side chain.
  24. The alpha-helix and pleated sheet are examples of ________ protein structure.
    secondary
  25. How would the lack of a cofactor for an enzyme affect that enzyme's function?
    The enzyme would not be able to function
  26. Molecules that store and process genetic information are the
    nucleic acids.
  27. According to the rules of complementary base pairing in nucleic acids, cytosine would pair with the base
    guanine.
  28. The structure of RNA differs from DNA in that
    the backbone of RNA contains ribose
  29. The phosphorylation of adenosine forms
    AMP.
  30. AMP + P ->
    ADP
  31. The average time between synthesis and breakdown is known as the ________ time.
    turnover
  32. Continuous breakdown and replacement of cellular molecules is termed
    metabolic turnover.

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