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Question
CO2fixation is one of the most critical reactions on earth. Which of the following are elements of the reaction catalyzed by the RUBISCO enzyme?a. Mg2+ acts as a Lewis acid, binding to CO2 and making it more susceptible to nucleophilic attack
b. The 6-carbon enzyme-bound intermediate that forms is split into 2 molecules of 3-phosphoglycerate
c. Biotin is attached to a Lys residue in the active site and serves a critical role in the activation of CO2
d. ATP is required for the activation of CO2 prior to its reaction with ribulose-1,5-bisphosphate
e. Both a and b occur
Answer
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Related questions
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Q:
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Q:
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Q:
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Q:
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All are correct about enhancer sequences in eukaryotic cells EXCEPT:
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Q:
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Q:
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Q:
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Q:
Mutations in DNA may result from all of the following EXCEPT:
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b. physical insults on the cell, such as UV light.
c. errors in transcription.
d. chemical mutagens.
e. introduction of a base analog into DNA.
Q:
A transition mutation would be replacing A by:
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b. C.
c. U.
d. G.
e. either T or C