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What is the role of phosphofructokinase in glycolysis?

Practice Questions

Q1
What is the role of phosphofructokinase in glycolysis?
  1. Regulatory enzyme
  2. Energy production
  3. Substrate-level phosphorylation
  4. Dehydrogenation

Questions & Step-by-Step Solutions

What is the role of phosphofructokinase in glycolysis?
  • Step 1: Understand that glycolysis is a process that breaks down glucose to produce energy.
  • Step 2: Identify that phosphofructokinase (PFK) is an enzyme involved in this process.
  • Step 3: Recognize that PFK helps convert a specific molecule (fructose-6-phosphate) into another molecule (fructose-1,6-bisphosphate).
  • Step 4: Learn that this conversion is an important step in glycolysis and helps control how fast glycolysis happens.
  • Step 5: Conclude that because PFK controls this step, it is considered a key regulatory enzyme in glycolysis.
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