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BIOC 384 EXAM 2|| QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+||
LATEST AND COMPLETE UPDATE WITH
VERIFIED SOLUTIONS GUARANTEED PASS!!!
Choose the one TRUE statement from the choices below regarding peptide
synthesis - ANSWER: Each round of peptide synthesis in the lab a new amino
acid to the N-terminal end of the peptide.
Select the one TRUE statement below regarding X-ray crystallography -
ANSWER: A structure determined at 2 Angstrom resolution has higher resolution
(more detail can be seen in the model) than a structure determined at 3 Angstrom
resolution
Match each protein with its functional class - ANSWER: 1. Transport protein -->
Na+/K+ ATP ase
2. Structural protein --> Tubulin
3. Genomic caretaker protein --> RNA polymerase
4. Metabolic enzyme --> Malate dehydrogenase
5. Cell signaling protein --> G-protein coupled receptors
Choose the one TRUE statement from the choices below regarding the potassium
channel - ANSWER: The selectivity channel restricts the passage of ions with
both larger and smaller atomic radii than potassium.
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Which one of the findings below would provide support for the transition state
theory of enzyme catalysis? - ANSWER: None of these answers are correct.
Match the generic enzyme name to the general type of reaction they catalyze -
ANSWER: 1. peptide cleavage --> Protease
2. addition of phosphoric groups --> Kinase
3. addition of methyl groups --> Methyltransferase
4. rearrangements that don't change the molecular formula --> Isomerase
5. removal of phosphoric groups --> Phosphatase
A reduction in the catalytic ability of carbonic anhydrase may lead to __________
efficient oxygen delivery by hemoglobin as a result of a(n) __________ Bohr
effect. - ANSWER: less; reduced
Binding of the negatively charge allosteric effector 2,3-bisphosphoglycerate (2,3-
BPG) stabilizes the T state of hemoglobin. A lysine residue in the central cavity of
hemoglobin interacts with 2,3-BPG. In a hemoglobin variant, there is a substitution
of this lysine by an asparagine. Relative to the wild-type hemoglobin, this variant
would be expected to have. Choose the ONE most correct statement. - ANSWER:
An increased affinity for oxygen in the presence of 2,3-BPG, and an equivalent
affinity in the absence of 2,3-BPG
For chymotrypsin, which amino acid forms the acyl-enzyme intermediate required
for the reaction? - ANSWER: Ser 195
BIOC 384 EXAM 2|| QUESTIONS AND 100%
CORRECT ANSWERS ALREADY GRADED A+||
LATEST AND COMPLETE UPDATE WITH
VERIFIED SOLUTIONS GUARANTEED PASS!!!
Choose the one TRUE statement from the choices below regarding peptide
synthesis - ANSWER: Each round of peptide synthesis in the lab a new amino
acid to the N-terminal end of the peptide.
Select the one TRUE statement below regarding X-ray crystallography -
ANSWER: A structure determined at 2 Angstrom resolution has higher resolution
(more detail can be seen in the model) than a structure determined at 3 Angstrom
resolution
Match each protein with its functional class - ANSWER: 1. Transport protein -->
Na+/K+ ATP ase
2. Structural protein --> Tubulin
3. Genomic caretaker protein --> RNA polymerase
4. Metabolic enzyme --> Malate dehydrogenase
5. Cell signaling protein --> G-protein coupled receptors
Choose the one TRUE statement from the choices below regarding the potassium
channel - ANSWER: The selectivity channel restricts the passage of ions with
both larger and smaller atomic radii than potassium.
, 2|Page
Which one of the findings below would provide support for the transition state
theory of enzyme catalysis? - ANSWER: None of these answers are correct.
Match the generic enzyme name to the general type of reaction they catalyze -
ANSWER: 1. peptide cleavage --> Protease
2. addition of phosphoric groups --> Kinase
3. addition of methyl groups --> Methyltransferase
4. rearrangements that don't change the molecular formula --> Isomerase
5. removal of phosphoric groups --> Phosphatase
A reduction in the catalytic ability of carbonic anhydrase may lead to __________
efficient oxygen delivery by hemoglobin as a result of a(n) __________ Bohr
effect. - ANSWER: less; reduced
Binding of the negatively charge allosteric effector 2,3-bisphosphoglycerate (2,3-
BPG) stabilizes the T state of hemoglobin. A lysine residue in the central cavity of
hemoglobin interacts with 2,3-BPG. In a hemoglobin variant, there is a substitution
of this lysine by an asparagine. Relative to the wild-type hemoglobin, this variant
would be expected to have. Choose the ONE most correct statement. - ANSWER:
An increased affinity for oxygen in the presence of 2,3-BPG, and an equivalent
affinity in the absence of 2,3-BPG
For chymotrypsin, which amino acid forms the acyl-enzyme intermediate required
for the reaction? - ANSWER: Ser 195
