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SURVEY OF BIOCHEMISTRYCourse Review

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PRS-1

• Which amino acid contains a ring system?

1. Phe2. Ile3. Val4. Gly

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PRS-1

• Which amino acid contains a ring system?

1. Phe2. Ile3. Val4. Gly

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PRS-2

• Which enzyme is an oxidoreductase?

1. Hemoglobin2. Enolase3. GAP Dehydrogenase4. Aconitase

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PRS-2

• Which enzyme is an oxidoreductase?

1. Hemoglobin2. Enolase3. GAP Dehydrogenase4. Aconitase

What gets oxidized?

What gets reduced?

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PRS-3

• In mixed inhibition ___________.

1. Vmax increases and KM increases

2. Vmax decreases and KM increases

3. Vmax stays the same and KM increases

4. Vmax decreases and KM stays the same

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PRS-3

• In mixed inhibition ___________.

1. Vmax increases and KM increases

2. Vmax decreases and KM increases

3. Vmax stays the same and KM increases

4. Vmax decreases and KM stays the same

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PRS-4

• A fatty acid with 18 carbons and no double bonds in the alkyl chain is called:

1. Stearic acid2. Palmitic Acid3. Linoleic acid4. Arachidonic acid

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PRS-4

• A fatty acid with 18 carbons and no double bonds in the alkyl chain is called:

1. Stearic acid2. Palmitic Acid3. Linoleic acid4. Arachidonic acid

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PRS-5

• An alpha helix is stabilized by:1. Hydrogen bonds between the side chains of the

amino acids

2. Hydrogen bonds between the carbonyl oxygens and the N-H group of the adjacent residue

3. H-bonds between the carbonyl oxygens and the N-H group of the (n+3)th residue

4. H-bonds between the carbonyl oxygens and the N-H group of the (n+4)th residue

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PRS-5

• An alpha helix is stabilized by:1. Hydrogen bonds between the side chains of the

amino acids

2. Hydrogen bonds between the carbonyl oxygens and the N-H group of the adjacent residue

3. H-bonds between the carbonyl oxygens and the N-H group of the (n+3)th residue

4. H-bonds between the carbonyl oxygens and the N-H group of the (n+4)th residue

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PRS-6

• In ion exchange chromatography, the protein captured by the resin is eluted with:

1. Salt

2. Water

3. Imidazole

4. Diethylaminoethyl groups

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PRS-6

• In ion exchange chromatography, the protein captured by the resin is eluted with:

1. Salt

2. Water

3. Imidazole

4. Diethylaminoethyl groups

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PRS-7

• What reaction follows GAP dehydrogenase in glycolysis?

1. Phosphoglucomutase2. Phosphofructokinase3. Phosphoglycerate kinase4. Phosphoglycerate mutase

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PRS-7

• What reaction follows GAP dehydrogenase in glycolysis?

1. Phosphoglucomutase2. Phosphofructokinase3. Phosphoglycerate kinase4. Phosphoglycerate mutase

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PRS-8

• What is Dansyl Chloride used for?1. End group analysis in peptide

sequencing2. Staining polyacrylamide gels3. Determining protein

concentration4. Reducing disulfide bonds

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PRS-8

• What is Dansyl Chloride used for?1. End group analysis in peptide

sequencing2. Staining polyacrylamide gels3. Determining protein

concentration4. Reducing disulfide bonds

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PRS-9

• Which amino acids make up the catalytic triad of serine proteases?

1. His, Lys, Arg

2. Ser, His, Asp

3. Asp, Cys, Ser

4. Lys, Ser, Asp

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PRS-9

• Which amino acids make up the catalytic triad of serine proteases?

1. His, Lys, Arg

2. Ser, His, Asp

3. Asp, Cys, Ser

4. Lys, Ser, Asp

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PRS-10

• Which of the following is NOT a disaccharide?

1. Lactose2. Maltose3. Sucrose4. Mannose

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PRS-10

• Which of the following is NOT a disaccharide?

1. Lactose2. Maltose3. Sucrose4. Mannose

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PRS-11

• How many fused rings are found in cholesterol?

1. One2. Two3. Three4. Four

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PRS-11

• How many fused rings are found in cholesterol?

1. One2. Two3. Three4. Four

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PRS-12

• Which of the following cannot serve as a nucleophile?

1. Ser2. His3. Asp4. Zn2+

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PRS-12

• Which of the following cannot serve as a nucleophile?

1. Ser2. His3. Asp4. Zn2+