Which of the Following Statements About Purine Biosynthesis in Vertebrates

question 13

Multiple Choice

Which of the following statements about purine biosynthesis in vertebrates is FALSE?

• A) Many of the proteins are multifunctional in that they have more than one active site.
• B) Six proteins form a multienzyme complex with covalent linkages.
• C) The multienzyme complex is called a purinosome.
• D) Two enzymes of single carbon metabolism are associated with the multifunctional enzyme complex.
• E) One of the enzymes that contributes to the formation of 10-formyl-tetrahydrofolate is a multifunctional enzyme.

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