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Biochemistry

Study Pack

Set 7 Protein Function And Evolution

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Question 1

(Multiple Choice)

Free
Which of the following reversible reactions of carbon dioxide explains how hemoglobin serves as a transporter of carbon dioxide?

A)reaction with the imidazole group of the distal histidine where oxygen would normally be bound
B)reaction with the carboxyl group of glutamic acid to form a carbonic acid anhydride
C)reaction with the N-terminal amino groups to form a carbamate
D)reaction with the hydroxyl group of serine to form a carbonate
E)none of the above

Answer

Question 2

(Multiple Choice)

Free
Which of the following models of allosteric transitions best applies to hemoglobin?

A)sequential (KNF)model
B)concerted (MWC)model
C)tertiary two-state model
D)tense versus relaxed model
E)none of the above

Answer

Question 3

(Multiple Choice)

Free
Which of the following mutations in the coding strand of DNA would be the most likely to cause a serious mutation?

A)AGA \to CGA
B)ATA \to TTA
C)GAA \to AAA
D)TAA \to TGA
E)ACT \to AGT

Answer