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Section I – Proteins: Structure & Function

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Select the one of the following statements that is NOT CORRECT.

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A. Fermentation and glycolysis share many common biochemical features.

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B. Louis Pasteur first discovered that cell-free yeast preparations could convert sugars to ethanol and carbon dioxide.

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C. Organic orthophosphate (Pi) is essential for glycolysis.

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D. 14C is an important tool for detecting metabolic intermediates.

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E. Medicine and biochemistry provide mutual insights to one another.

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Select the one of the following statements that is NOT CORRECT.

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A. The vitamin derivative NAD is essential for conversion of glucose to pyruvate.

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B. The term “Inborn errors of metabolism” was coined by the physician Archibald Garrod.

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C. Mammalian tissue slices can incorporate inorganic ammonia into urea.

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D. Realization that DNA is a double helix permitted Watson & Crick to describe the polymerase chain reaction (PCR).

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E. Mutation of the genome of a “model organisms” can provide insight into biochemical processes.

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Select the one of the following statements that is NOT CORRECT.

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The propensity of water molecules to form hydrogen bonds with one another is the primary factor responsible for all of the following properties of water EXCEPT:

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A. Its atypically high boiling point.

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B. Its high heat of vaporization.

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C. Its high surface tension.

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D. Its ability to dissolve hydrocarbons.

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E. Its expansion upon freezing.

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Hydrocarbons are water insoluble.

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Select the one of the following statements that is NOT CORRECT.

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A. The side-chains of the amino acids cysteine and methionine absorb light at 280 nm.

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B. Glycine is often present in regions where a polypeptide forms a sharp bend, reversing the direction of a polypeptide.

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C. Polypeptides are named as derivatives of the C-terminal aminoacyl residue.

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D. The C, N, O, and H atoms of a peptide bond are coplanar.

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E. A linear pentapeptide contains four peptide bonds.

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Of the protein amino acids, only phenylalanine, tyrosine, and tryptophan ...

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