Which of the Following Statements Is FALSE About the E

question 15

Multiple Choice

Which of the following statements is FALSE about the E. coli phosphotransferase system (PTS) ?

• A) Enzyme II components are specific to the substrates being transported.
• B) The substrate is phosphorylated during transport by PTS, making it different from the external substrate; thus, the substrate always travels down its concentration gradient.
• C) The phosphate group transferred to the sugar comes from phosphoenolpyruvate (PEP).
• D) The PTS transport requires energy in the form of ATP.
• E) The system has a modular design that accommodates different substrates.

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