QQuestionBiology
QuestionBiology
"Which statement describes ATP consumption and production during the preparatory and payoff phases of glycolysis, respectively?
A. Two ATP molecules consumed, four ATP molecules produced
B. Four ATP molecules consumed, eight ATP molecules produced
C. Four ATP molecules consumed, two ATP molecules produced
D. Eight ATP molecules consumed, four ATP molecules produced"
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Answer
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Step 1Let's solve this step by step by carefully analyzing the ATP changes during glycolysis.
Step 2: Understanding Glycolysis Phases
Glycolysis consists of two main phases: - Preparatory (Investment) Phase - Payoff (Splitting) Phase
Final Answer
Two ATP molecules consumed, four ATP molecules produced This matches the actual ATP dynamics during glycolysis, representing the net energy gain of the metabolic process.
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