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Continuing Education Biochemistry Questions

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Continuing Education Macromolecules
Proteins are                        made of amino acid                       .
  1. monomers; polymers
  2. polymers; polypeptides
  3. polymers; monomers
  4. monomers; molecules
Continuing Education Macromolecules
Sugars, starches, and cellulose belong to which major class of biological molecules?
  1. Nucleic acids
  2. carbohydrates
  3. lipids
  4. polypeptides
Continuing Education Biochemical Pathways
Oxidation is                                                    .
  1. the removal of hydrogen or the addition of oxygen
  2. the removal of oxygen or the addition of hydrogen
  3. the removal of oxygen and the removal of hydrogen
  4. the addition of oxygen and the addition of hydrogen
  5. the gain of electrons
Continuing Education Macromolecules
What is the most abundant element in the human body?
  1. Oxygen
  2. Nitrogen
  3. Carbon
  4. Phosphorus
Continuing Education Macromolecules
[math](CH_2O)_n[/math] is the molecular formula for which type of macromolecules?
  1. Proteins
  2. Lipids
  3. Carbohydrates
  4. Nucleic Acid
  5. Hydroxyl
Continuing Education Macromolecules
What do we call the monomers that make up polysaccharides?
  1. Peptides
  2. Amino Acids
  3. Monosaccharides
  4. DNA
  5. Proteins
Continuing Education Macromolecules
Proteins are large molecules made up of individual amino acids.
  1. True
  2. False
Continuing Education Macromolecules
In general, phenols are                              .
  1. weak acids
  2. strong acids
  3. weak bases
  4. strong bases
  5. some are bases and some acids
Continuing Education Macromolecules

This question is a part of a group with common instructions. View group »

Polysaccharide is another name for which type of macro molecules?
  1. Proteins
  2. Nucleic Acids
  3. Carbohydrates
  4. Steroids
  5. Fats
Continuing Education Macromolecules
Animals store glucose in the form of                .
  1. Glycogen
  2. Starch
  3. Cellulose
  4. Maltose
  5. Glucose
Continuing Education Macromolecules
What are structural isomers?
  1. substances with the same arrangement of covalent bonds, but the order in which the atoms are arranged in space is different
  2. substances that are mirror images of each other and that cannot be superimposed on each other
  3. substances with the same molecular formula that differ in the covalent arrangement of their atoms
  4. atoms of the same element with differing number of neutrons
  5. None of the above
Continuing Education Macromolecules
                is a structural carbohydrate found in plant cell walls.
  1. Starch
  2. Maltose
  3. Fructose
  4. Glycogen
  5. Cellulose
Continuing Education Macromolecules
A polysaccharide is made up of many                            linked together by a                            bond.
  1. monosaccharides, peptide
  2. monosaccharide, glycosidic
  3. protein, peptide
  4. lipid, ester
  5. lipid, glycosidic
Continuing Education Macromolecules
The general formula R-O-R' represents                .
  1. an alcohol
  2. an aldehyde
  3. an ether
  4. a ketone
  5. a hemiacetal
Continuing Education Macromolecules
Consider the formation of hemiacetal cyclic form of glucose from the aldehyde form of glucose. The oxygen atom that becomes a part of the "OH" group on the #1 carbon atom in the cyclic form was originally, in the aldehyde form,                                                 .
  1. the oxygen in the alcohol group on the #5 carbon
  2. the oxygen in the alcohol group on the #4 carbon
  3. the oxygen in an ether linkage
  4. the oxygen in the alcohol group on the #6 carbon
  5. an oxygen in a carbonyl group
Continuing Education Macromolecules
Molecules having the same molecule formula but different structural formulas are                                     .
  1. said to be identical
  2. said to be branched
  3. said to be optical isomers
  4. said to be "cis" and "trans" isomers
  5. none of the above
Continuing Education Biochemical Pathways
Consider the formation of the hemiacetal cyclic form of glucose from the aldehyde form of glucose. The reaction involved is classified as                        .
  1. an elimination reaction
  2. a dehydration reaction
  3. an hydrolysis reaction
  4. an addition reaction
  5. none of the above
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