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100. DNA


a.is one of the adenosine phosphates


b.is one of the necleotide coenzymes


c.contains protein-building instructions


e.all of these


e.none of these





11.About 12 to 24hours after the last meal, a persons blood sugar level normally varies from 60 to 90 milligrams per 100 milliliters of blood, although it may rise to 100mg/100ml after meals high in carbohydrates, That the blood sugar level is maintained within a fairly narrow range despite uneven intake fo sugar is due to the ody'd ability to carrry out.


a.adaptation


b.inheritance


c.metabolism


d.homeostasis


e.all of these





57. Glucose dissolves in water because it


a.ionizes


b.is a polysaccharide


c.is polar and forms many hydrogen bonds with the water molecules.


d.has a very reactive primary structure


e.none of these





43. The atomic number is determined by the number of


a.neutrons and protons


b.neutrons and electrons


c.protons and electrons


d.protons only


e.neutrons only.

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10. e


11. d


57. c


43. d