Exam (elaborations)
USABO Exam Questions and Answers (Graded A)
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USABO Exam Questions and Answers
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USABO Exam Questions and AnswersHydroxyl Group - Answer -OH, polar
Carbonyl Group - Answer C=O, polar
Carboxyl Group - Answer -COOH, polar
Amino Group - Answer -NH2, polar
Phosphate Group - Answer -OPO3^2-, polar
Methyl Group - Answer -CH3, non-polar
Carbohydrates - Answer Broken down to glucose to provide energy. Hydrocarbon
skeletons.
Starch - Answer A storage polysaccharide in plants consisting entirely of glucose.
Glycogen - Answer An extensively branched glucose storage polysaccharide found in
the liver and muscle of animals; the animal equivalent of starch.
Cellulose - Answer A substance (made of sugars) that is common in the cell walls of
many organisms.
Chitin - Answer A structural polysaccharide, consisting of amino sugar monomers,
found in many fungal cell walls and in the exoskeletons of all arthropods.
Lipids - Answer Energy-rich organic compounds that are hydrophobic, such as fats, oils,
and waxes, that are made of carbon, hydrogen, and oxygen.
Unsaturated fatty acid - Answer A fatty acid possessing one or more double bonds
between the carbons in the hydrocarbon tail. Such bonding reduces the number of
hydrogen atoms attached to the carbon skeleton. Present in fish and plants as a liquid.
Saturated fatty acid - Answer A fatty acid in which all carbons in the hydrocarbon tail are
connected by single bonds, thus maximizing the number of hydrogen atoms that can
attach to the carbon skeleton. Present in animals as a soild.
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