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Water is important to the interactions of biological molecules because it
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ALL
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Radioactive isotopes are useful biological tools that are often used to
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Detect brain tumors
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Which represents the highest degree of certainty?
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Theory
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Polar Molecules
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Have an unequal distribution of electric charge
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What bond(s) is (are) easily disrupted in aqueous (water) solutions?
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Ionic
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Of the following, which is the first explanation of a problem in thinking of scientists?
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Hypothesis
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The most plentiful dissacaride in nature is
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Sucrose
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Which of the following is NOT true of hydrogen bonds?
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They are difficult of hard to form and break
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Which of the following is least likely to enter into a chemical reaction?
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Helium
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The column of water extending in tubes from plant roots to leaves is maintained by
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Cohesion among water molecules
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An atom that gains or loses electrons becomes
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An ion
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Methane
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Is the simplest organic compound.
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The three most common atoms in the human body are
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Hydrogen, oxygen, and carbon
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Which of these components of a tossed salad will pass through the human digestive tract with the least digestion?
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Cellulose (in lettuce leaves)
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Glycogen, cellulose, and starch are composed of entirely _______ subunits.
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Glucose
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