Question 1

The following is an example of ___.

Accepted Answer

A)  parallel $\alpha$-helix 
B)  parallel $\beta$-sheet 
C)  antiparallel $\alpha$-helix 
D)  antiparallel$\beta$-sheet 
E)  none of these choices 
A)  parallel $\alpha$-helix 
B)  parallel $\beta$-sheet 
C)  antiparallel $\alpha$-helix 
D)  antiparallel$\beta$-sheet 
E)  none of these choices

Question 2

A technique for determining protein structure where the protein is in solution is ___.

Accepted Answer

A)  NMR spectroscopy 
B)  X-ray crystallography 
C)  electron crystallography 
D)  mass spectrometry 
E)  none of these choices 
A)  NMR spectroscopy 
B)  X-ray crystallography 
C)  electron crystallography 
D)  mass spectrometry 
E)  none of these choices

Question 3

Which of the following structures shows the prevalent form of glutamic acid at pH 3?

Accepted Answer

A)  
  
B)  
  
C)  
  
D)  
  
E)  none of these choices 
A)  
  
B)  
  
C)  
  
D)  
  
E)  none of these choices

Question 4

Which of the following structures shows the prevalent form of histidine at pH 5?

Accepted Answer

A)  
  
B)  
  
C)  
  
D)  
  
E)  none of these choices 
A)  
  
B)  
  
C)  
  
D)  
  
E)  none of these choices

Question 5

What are the products from treatment of the following peptide with chymotrypsin?
Met-Tyr-Ala-Ser-Phe-Val-Lys-Asn-His-Tyr-Gly-Arg-Met-Trp

Accepted Answer

A)  1 tripeptide, 1 tetrapeptide, 1 pentapeptide, and two free amino acids 
B)  1 dipeptide, 1 tripeptide, 1 tetrapeptide and 1 pentapeptide 
C)  1 dipeptide, 1 tetrapeptide and 1 octapeptide 
D)  1 dipeptide, 2 tripeptides, 1 pentapeptide and one free amino acid 
E)  none of these choices 
A)  1 tripeptide, 1 tetrapeptide, 1 pentapeptide, and two free amino acids 
B)  1 dipeptide, 1 tripeptide, 1 tetrapeptide and 1 pentapeptide 
C)  1 dipeptide, 1 tetrapeptide and 1 octapeptide 
D)  1 dipeptide, 2 tripeptides, 1 pentapeptide and one free amino acid 
E)  none of these choices

Question 6

Which of the following structures shows the prevalent form of cysteine at pH 12?

Accepted Answer

A)  
  
B)  
  
C)  
  
D)  
  
E)  none of these choices 
A)  
  
B)  
  
C)  
  
D)  
  
E)  none of these choices

The following is an example of ___.

A technique for determining protein structure where the protein is in solution is ___.

Which of the following structures shows the prevalent form of glutamic acid at pH 3?

Which of the following structures shows the prevalent form of histidine at pH 5?

What are the products from treatment of the following peptide with chymotrypsin? Met-Tyr-Ala-Ser-Phe-Val-Lys-Asn-His-Tyr-Gly-Arg-Met-Trp

Which of the following structures shows the prevalent form of cysteine at pH 12?

The Chemical Basis of Life

Aqueous Chemistry

Nucleic Acid Structure and Function

Protein Function

How Enzymes Work

Enzyme Kinetics and Inhibition

Lipids and Membranes

Membrane Transport

Signaling

Carbohydrates

Metabolism and Bioenergetics

Glucose Metabolism

The Citric Acid Cycle

Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Nitrogen Metabolism

Regulation of Mammalian Fuel Metabolism

DNA Replication and Repair

Transcription and RNA

Protein Synthesis

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Exam 4: Protein Structure

The following is an example of ___.

A technique for determining protein structure where the protein is in solution is ___.

Which of the following structures shows the prevalent form of glutamic acid at pH 3?

Which of the following structures shows the prevalent form of histidine at pH 5?

What are the products from treatment of the following peptide with chymotrypsin? Met-Tyr-Ala-Ser-Phe-Val-Lys-Asn-His-Tyr-Gly-Arg-Met-Trp

Which of the following structures shows the prevalent form of cysteine at pH 12?

The Chemical Basis of Life

Aqueous Chemistry

Nucleic Acid Structure and Function

Protein Function

How Enzymes Work

Enzyme Kinetics and Inhibition

Lipids and Membranes

Membrane Transport

Signaling

Carbohydrates

Metabolism and Bioenergetics

Glucose Metabolism

The Citric Acid Cycle

Oxidative Phosphorylation

Photosynthesis

Lipid Metabolism

Nitrogen Metabolism

Regulation of Mammalian Fuel Metabolism

DNA Replication and Repair

Transcription and RNA

Protein Synthesis

Filters